Gynecologic Pathology
Fatemeh Nili; Niusha Noubari; Alireza Abdollahi
Abstract
ysgerminoma is one of the two most common types of ovarian germ cell tumors. Providing accurate pathologic diagnosis and treatment planning, the prognosis is good even in advanced stages. Pathologic diagnosis is generally straightforward. In microscopic examination, the usual known growth patterns in ...
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ysgerminoma is one of the two most common types of ovarian germ cell tumors. Providing accurate pathologic diagnosis and treatment planning, the prognosis is good even in advanced stages. Pathologic diagnosis is generally straightforward. In microscopic examination, the usual known growth patterns in tumor cells are solid, trabecular, insular and rarely pseudoglandular. In this paper, we reported an advanced ovarian dysgerminoma with different microscopic patterns of growth, including pseudopapillary and macrofollicular structures, in an 18-year-old woman. The patient underwent staging laparotomy and is currently receiving chemotherapy.
GI, Liver & Pancreas Pathology
Pathoom Sukkaromdee; Viroj Wiwanitkit
Abstract
Dear editor, the fecal occult blood test is the presently widely used screening laboratory test for colorectal cancer. At present, the test is usually based on an immunological diagnostic principle (1, 2). A false positive fecal occult blood is common and widely mentioned in literature. Nevertheless, ...
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Dear editor, the fecal occult blood test is the presently widely used screening laboratory test for colorectal cancer. At present, the test is usually based on an immunological diagnostic principle (1, 2). A false positive fecal occult blood is common and widely mentioned in literature. Nevertheless, the false negative is little mentioned in the paper. Here, the authors discuss the issue of the fecal occult blood test’s false negative problem. The case is a consultation on a patient’s laboratory aberration. This patient had hemorrhoids and rectosigmoidoscope showed active bleeding. Nevertheless, the stool occult blood test in this patient always showed a negative result. The physician in charge consulted a clinical pathologist for this problem, and the latter noted that this case is that of a false negative due to the prozone effect. The dilutional preparation of the stool sample is done for confirmation. Before dilutional preparation, the result is negative, and is positive afterwards. In fact, the prozone phenomenon is a common but little mentioned problem in clinical diagnosis. The problem can be seen in serological tests. For the fecal occult blood test, the false negative due to prozone effect is little mentioned in the paper, and the practitioner should recognize that there is also a possibility of a false negative in this test. According to the principle behind the fecal occult blood test principle, a hemoglobin concentration above 0.5 mg/mL can cause a prozone effect and a false negative.
Molecular Pathology
Aparna Devi C; Ashwini Nargund; Geeta V Patil Okaly; Usha Amirtham
Abstract
Angiomatoid Fibrous histiocytoma (AFH) is a rare soft tissue neoplasm that is often misdiagnosed initially. It is commonly encountered in the superficial extremities of children and young adults. It is composed of a nodular proliferation of bland looking spindled to ovoid cells, some with variant histology ...
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Angiomatoid Fibrous histiocytoma (AFH) is a rare soft tissue neoplasm that is often misdiagnosed initially. It is commonly encountered in the superficial extremities of children and young adults. It is composed of a nodular proliferation of bland looking spindled to ovoid cells, some with variant histology and characterized by EWSR1 fusion. We, herein, present three such cases, who presented with swelling in the right leg (case 1), right forearm (case 2), and right thigh (case 3). Case 2 presented in the fourth decade with a large swelling compared to the other two cases that presented in 3rd decade with a small swelling. Histologic examination of case 2 showed extensive myxoid changes making it diagnostically challenging. All three cases showed EWSR1 fusion with a break-apart probe. Follow-up was uneventful in all three cases. AFH, although it is a benign neoplasm, is a great mimicker of various low-grade spindle cell sarcomas. Awareness of this entity with its various histomorphological variants is necessary to accurately diagnose this lesion.
GI, Liver & Pancreas Pathology
Alireza Khooei; Sahar Seifnia; Amin Dalili; Hossein Bavandi; Saeid Dehghan Nezhad; Motahare Ebrahimnejad
Abstract
Malignant melanoma of the small intestine is mostly a metastatic tumor of other primary lesions, especially of skin origin. Primary malignant melanoma of the small intestine is very uncommon. The clinical presentation is usually nonspecific, thus leading to late diagnosis.We report a 42-year-old man ...
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Malignant melanoma of the small intestine is mostly a metastatic tumor of other primary lesions, especially of skin origin. Primary malignant melanoma of the small intestine is very uncommon. The clinical presentation is usually nonspecific, thus leading to late diagnosis.We report a 42-year-old man who presented to the emergency department of Imam-Reza Hospital with symptoms and signs of peritonitis and was a candidate for emergency laparotomy and enterectomy. The medical and family history were unremarkable. A bulky mass was seen, 190 cm away from the Treitz band, and a diagnosis of malignant melanoma was confirmed by histologic and immunohistochemical study. Further clinical examination revealed no primary tumor elsewhere, so the diagnosis of primary small intestinal melanoma was concluded.Although metastatic malignant melanoma in the GI tract is common, the primary one is a very rare entity. The diagnosis could be challenging because a thorough investigation is needed to rule out the possible initial origin.
Katayoun Ziari; Kamyab Alizadeh; Omid Rahmani; Mohammad-Reza Kazemi
Volume 9, Issue 2 , April 2014, , Pages 160-168
Abstract
Lymphomatous involvement of the appendix is rare and most of them are found accidentally from appendectomies to treat appendicitis. Here we report three cases of primary lymphoma of appendix of 10 year-old boy, 23-year-old man and 24-year-old woman that presented with abdominal pain to our hospital and ...
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Lymphomatous involvement of the appendix is rare and most of them are found accidentally from appendectomies to treat appendicitis. Here we report three cases of primary lymphoma of appendix of 10 year-old boy, 23-year-old man and 24-year-old woman that presented with abdominal pain to our hospital and the tumors were discovered during routine appendectomy for suspected "appendicitis". Our cases underwent chemotherapy regimen and they were asymptomatic respectively at 14, 17, and 18 months following-up. In the literature review of the tumors of the appendix, most of the begin tumors of appendix are treated with surgery alone. Lymphoma requires CHOP-like chemotherapy and carcinoid tumor treated according to the size of the tumor <2 with appendectomy alone and >2 with right hemicolectomy. The preferred treatment for adenocarcinoma of appendix is right hemicolectomy and the role of chemotherapy is unclear but when lymph node involvement is present, chemotherapy seems to be accepted.
Hadiseh Hosamirudsari; Farzaneh Mohammadizia
Abstract
Tuberculosis (TB) global prevalence remains almost unchanged over the past few decades. Though genitourinary tract tuberculosis is common, it is rarely associated with scrotal fistula. We present a rare case of advanced tuberculous epididymo-orchitis (TBEO) which culminated in removing the testis. ...
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Tuberculosis (TB) global prevalence remains almost unchanged over the past few decades. Though genitourinary tract tuberculosis is common, it is rarely associated with scrotal fistula. We present a rare case of advanced tuberculous epididymo-orchitis (TBEO) which culminated in removing the testis. Before final diagnosis is made, it was unresponsive to empirical therapy of bacterial epididymo-orchitis. The approaches to this case were clinical, radiological and histopatologic. For treatment and follow up see the case report.
Debjani Mallick; Aniruna Dey; Sonia Gon; Gayatri Ghoah
Volume 11, Issue 2 , April 2016, , Pages 167-170
Abstract
Malignant papillary neoplasms of the breast comprise a number of microscopically distinct lesions, where apocrine metaplasia is commonly found in papillomas compared to other papillary lesions including papillary carcinomas. However, association of apocrine metaplasia in papilloma with Ductal Carcinoma ...
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Malignant papillary neoplasms of the breast comprise a number of microscopically distinct lesions, where apocrine metaplasia is commonly found in papillomas compared to other papillary lesions including papillary carcinomas. However, association of apocrine metaplasia in papilloma with Ductal Carcinoma in Situ (DCIS) is not very well defined. The lesions with apocrine metaplasia are not only difficult to categories, but also there is controversy regarding their relative risk of subsequent carcinoma development. A case of extensive apocrine differentiation in duct papilloma with DCIS developing in the background of papillomatosis, posing a diagnostic dilemma for the pathologist and a therapeutic challenge for the surgeon, is hereby reported for its uniqueness and rarity. Awareness of this association should be kept in mind by both the pathologist as well as clinician for optimal therapeutic intervention.
Sepideh Siadati; Hamid Shafi; Hossein Ghorbani
Abstract
Background & objective: Regarding the importance of histologic examination of testicular biopsy for clinical planning of infertility, the current study was conducted to compare 2 separate histologic examination of testicular biopsy. Also, some cases with known fertility outcome were followed and ...
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Background & objective: Regarding the importance of histologic examination of testicular biopsy for clinical planning of infertility, the current study was conducted to compare 2 separate histologic examination of testicular biopsy. Also, some cases with known fertility outcome were followed and their histological patterns were also compared with those of the outcome.
Methods: The current study was conducted on testicular biopsies of 924 males evaluated for infertility from 1990 to 2013, retrieved from the archive of pathology department of Shahid Beheshti Hospital, Babol, Northern Iran. All slides were reviewed by a pathologist unaware of the original results. Data including age, histological pattern of spermatogenesis (pure and mixed), smoking, and the history of ejaculatory duct obstruction were retrieved from the pathology archive. In some cases, the outcome was also compared with that of the histological pattern. All analyses were executed using SPSS version 22 statistical software. To analyze the data, t test, Chi-square test, one-way ANOVA, and the least significant difference (LSD) test were used.
Results and Conclusion: Out of the 924 testicular biopsies, 34 (3.7%) cases had different reports from original reading. LSD analysis indicated Sertoli cell only syndrome (SCO) as the most common histological pattern. There was a significant difference between the mean age of cases with SCO and that of the ones with hypospermatogenesis (HYPO) (P =0.03). Obstruction was higher in pure pattern (P=0.04). The pregnancy rate was higher in the wives of males with obstructive infertility than the ones with non-obstructive infertility. SCO was the most common histological pattern of testicular biopsy during 23 years. Pure patterns were more than mixed patterns, and the mean age was lower in mixed patterns. Also, pure patterns were the most common findings in the cases with obstructive infertility.
Noushin Jalayer Naderi
Abstract
Dear Editor, Cigarette smoking has destructive effect on periodontal tissue. The rates of loss of periodontal attachment and recession of gingival are higher in smokers than non-smokers (1-2). Previous studies on the inflammatory immune responses in smokers’ periodontitis have mainly focused on ...
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Dear Editor, Cigarette smoking has destructive effect on periodontal tissue. The rates of loss of periodontal attachment and recession of gingival are higher in smokers than non-smokers (1-2). Previous studies on the inflammatory immune responses in smokers’ periodontitis have mainly focused on the role of neutrophils. Tumor necrosis factor–α, prostaglandin E2 and matrix metalloproteinase-8 have been shown to rise in smokers with periodontitis (3-4). Different functions of mast cells and eosinophils in inflammatory immune responses make them distinctive cells in disease pathogenesis (5-6). In an investigation, our team examined the effect of smoking on mast cells density in chronic periodontitis. The study showed that the mean number of mast cells in smokers was significantly lower compared to the non-smokers. Based on the literature, no research was found regarding the effect of cigarette smoking on eosinophil cells in human periodontitis. Eosinophils and mast cells regulate the hypersensitivity reactions by affecting each other function (5). Thus, in the next study, we examined this issue on the same samples. The results revealed that the number of eosinophil count in smokers was significantly lower than non-smokers. Considering the findings of both studies on decreased number of mast cells and eosinophils in the same samples, it seems that cigarette smoke had an apoptotic function on extra-vascular immune inflammatory related cells in human periodontitis. According to our opinion, with the death of mast cells and eosinophils, a cascade of different events occurs in the microenvironment of gingiva which causes more tissue damage in the smokers. The apoptotic effect of cigarette smoke on gingival connective tissue must be studied in the enzymatic level.The Heme Oxygenase-1 (HO-1)/Carbon Monoxide (CO) system demand to explain the pathogenesis of diseases by using the basic metabolism and enzymatic activities. HO-1 has a regulatory action on inflammatory signaling programs. CO is an end-product of HO-1. CO affects the apoptosis and cellular inflammation by modulating the inflammatory related cytokines. Modulating the HO-1 and application of CO-releasing molecules are new therapeutic strategies in inflammatory diseases (7). Based on our previous findings, we suggest that further study on HO-1/CO can probably determine the effect of cigarette smoke on inflammatory immune cells in human chronic periodontitis. The system can be potentially considered as a therapeutic target in inflammatory disease of periodontium in cigarette smokers. Conflict of Interest The authors declared no conflict of interest regarding the publication of this article.
Head and Neck Pathology
Maryam Ghasemi; Laleh Vahedi Larijani; Jamshid azdani-Charati; Elham Kamali Hakim
Abstract
Background & Objectives: Galectin-8 has relationships with cell growth and metastasis of some cancers. Due to controversy in the clinical significance of this protein in the cancer process, we investigated its roles in the development of head and neck squamous cell carcinoma. Methods: This study ...
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Background & Objectives: Galectin-8 has relationships with cell growth and metastasis of some cancers. Due to controversy in the clinical significance of this protein in the cancer process, we investigated its roles in the development of head and neck squamous cell carcinoma. Methods: This study was performed on 93 samples of patients with Squamous Cell Carcinoma or dysplasia of the head and neck, who underwent biopsy or surgery from 2015 till 2017 in Boo-Ali SINA hospital of Sari, Iran. The relevant paraffin embedded tissue blocks were obtained from archive of pathology and evaluated for galectin-8 by immunohistochemistry. The association between expression of galactin-8 and age, sex, location and stage of disease were assessed. To compare expression rate between the groups, Mc-Nemar, Chi-square and Fisher's exact tests were used. The P-value Results: Strong cytoplasmic and nuclear galactin-8 staining was observed in 97.6% cases of normal tissues while 77% of dysplastic lesions and 69% of the cancers revealed negative immunoreactivity. The intensity of expression in dysplastic and malignant tissues was significantly reduced compared with normal tissues (p =0.0001). The expression of galectin-8 did not correlate with stage (p =0.303), lymph node involvement (p =0.326), tumor grade (p =0.769), distant metastasis (p =0.748), and age (p =0.574). Conclusion: We observed that the expression of galectin-8 in dysplastic and malignant squamous epithelium significantly reduced compared with the normal counterpart of them in the head and neck. It may contribute to malignant transformation of head and neck squamous cells.
Hiva Saffar; Marzieh Mirzaii; Elham Mirzaian2050@gmail.com; Farid Kosari
Abstract
Background& Objective: Micro-vascular proliferation is an important histological feature of brain glioma with more vascular proliferation is present in higher grades of glioma. CD 105 is expressed in new actively proliferating and immature endothelial cells in tumor environment and appears ...
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Background& Objective: Micro-vascular proliferation is an important histological feature of brain glioma with more vascular proliferation is present in higher grades of glioma. CD 105 is expressed in new actively proliferating and immature endothelial cells in tumor environment and appears to be capable to distinguish between malignant neo-vasculature and normal vessels. Methods: This study was designed to evaluate the Micro-Vessel Density(MVD) in different grades of brain glioma based on CD 105 expression by Immunohistochemistry method to determine whether it can be a helpful marker for rumor grading or not. Paraffin blocks of formalin fixed samples of brain astrocytic glioma were retrieved and IHC was performed using anti-CD105 monoclonal mouse antibody. Results: Total number of 48cases of low and high grade astrocytic gliomas were evaluated.We noted that there was a positive correlation between MVD evaluated by CD105 and tumor grade, meaning that expression was significantly greater in tumors with higher grade (P=0.019). Conclusion: We concluded that MVD quantified by CD 105 has positive correlation with tumor grade. Also we think that expression of CD 105 specially in low-grade glioma can serve as a basis for selective treatment option in combination with current standard care .
Infectious Diseases
Sedigheh Hantoushzadeh; Roya Saeednejad; Mamak Shariat; Raheleh Moradi
Abstract
Background & Objective: It was declared that COVID-19 might be more severe in symptomatic pregnant patients. This study was conducted to examine the pathological indices of the placenta in pregnant women who were diagnosed with COVID-19.Methods: A total of 20 COVID-19–positive mothers were ...
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Background & Objective: It was declared that COVID-19 might be more severe in symptomatic pregnant patients. This study was conducted to examine the pathological indices of the placenta in pregnant women who were diagnosed with COVID-19.Methods: A total of 20 COVID-19–positive mothers were enrolled in this study. Detailed placental pathology findings were compared between subjects based on the history of abortion or occurrence of preterm delivery, hypertension, and diabetes.Results and Conclusion: Intervillositis was the most frequent abnormality of the placenta. There was also a significant association between abortion history and maternal vascular malperfusion (MVM; P=0.02). The placental abnormalities were found to be increased in women with COVID-19, regardless of maternal comorbidities. Further studies are needed to compare the placental pathology between COVID-19–positive women and healthy women.
Hematopathology
Elham Jafari; Ali Hadipour; Behjat Kalantari Khandani; Firoozeh Abolhasani
Abstract
Mast Cell Leukemia (MCL), a rare subtype of systemic mastocytosis is defined by bone marrow involvement as atypical and aleukemic mast cells, if more than 20% and less than 10% of peripheral WBCs are mast cells, respectively. We met a case of aleukemic MCL presenting with anemia and ascites for 2 years, ...
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Mast Cell Leukemia (MCL), a rare subtype of systemic mastocytosis is defined by bone marrow involvement as atypical and aleukemic mast cells, if more than 20% and less than 10% of peripheral WBCs are mast cells, respectively. We met a case of aleukemic MCL presenting with anemia and ascites for 2 years, referred for BM evaluation, suspicious of leukemia. Our findings included BM involvement by diffused aggregates of oval- and spindle-shaped atypical mast cells, lacking mature mast cells and other hematopoietic cells. The mast cells were absent in peripheral blood smear. Further assessments showed positive reaction of mast cells metachromatic granules with Tryptase, Giemsa and Toluidine blue stains, the expression of CD117/KIT and CD45 by immunohistochemistery, and elevated level of serum Tryptase. Radiologic investigations revealed generalized lymphadenopathy, and massive hepatosplenomegaly, followed by the cervical lymphadenectomy, and liver wedge biopsy. Suspicious peritoneal lesions were identified and underwent excisional biopsy. Microscopic evaluations showed lymph nodes and liver involvement by cancer cells and the same features in peritoneal seeding. Multiple organs damage progressed in few months and the patient died despite surgery and chemotherapy. In conclusion, we report an extremely rarecase of aleukemic MCL with multiple organs damage such as liver, peritoneum, spleen, gastrointestinal tract and BM, presenting by ascites. According to this case and previous parallel studies, we suggest some clinicopathologic features in favor of poor prognosis, including the presence of multiple organs damage, hepatomegaly, ascites, peritoneal seeding, the absence of mature mast cells and other hematopoietic cells in the BM, and elevated serum Tryptase level.
Oral Pathology
Tamgadge Sandhya; Tamgadge Avinash; Dhauskar Snehal; Tiwari Neha; Mudaliar Uma
Volume 11, Issue 3 , July 2016, , Pages 276-280
Abstract
Central giant cell granuloma is a benign, aggressive neoplasm composed of multinucleated giant cells that almost exclusively occurs in the jaws though extra-gnathic incidence is rare.Multifocal CGCGs of the jaws are very rare and suggestive of systemic diseases such as hyperparathyroidism,an inherited ...
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Central giant cell granuloma is a benign, aggressive neoplasm composed of multinucleated giant cells that almost exclusively occurs in the jaws though extra-gnathic incidence is rare.Multifocal CGCGs of the jaws are very rare and suggestive of systemic diseases such as hyperparathyroidism,an inherited syndrome such as Noonan-like multiple giant cell lesion syndrome or other disorders.Very few cases of multifocal CGCGs in the jaws without any concomitant systemic disease have been reported. This paper describes an unusual case reported to the Oral Surgery Department of Dr. D.Y.Patil Dental College & Hospital, Nerul, Navi-Mumbai in 2014ina45-year-old male with multifocal central giant cell granuloma involving maxilla and mandible. The serum alkaline phosphatase, calcium and phosphorus levels were within the normal limits. After complete clinical examination hyperparathyroidism and clinical characteristic of any syndromes such as Noonan-like syndrome and neurofibromatosis were ruled out. Thus this paper reports a non-syndromic multifocal central giant cell granuloma.
Uropathology
Krishnendu Mondal; Rupali Mandal
Abstract
Background: Carcinoid tumors usually originate from the enterochromaffin cells located in gastrointestinal tract and bronchopulmonary system. They may rarely arise in the urinary bladder, where this can be eventually miscued as any other commoner bladder neoplasms. The current study was conducted to ...
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Background: Carcinoid tumors usually originate from the enterochromaffin cells located in gastrointestinal tract and bronchopulmonary system. They may rarely arise in the urinary bladder, where this can be eventually miscued as any other commoner bladder neoplasms. The current study was conducted to connote an uncommon clinicopathological presentation by a carcinoid tumor in the urinary bladder. Case: A 52-year-old male, who initially experienced obstructive urinary symptoms, underwent cystourethroscopy to remove a tumor in the urinary bladder. The tumor exhibited insular, trabecular, and organoid architecture on histology without any necrosis or mitosis, stained positively with chromogranin A, and thereby, confirmed the diagnosis of a pure carcinoid tumor. Conclusion: Carcinoid tumors rarely arise in the urinary bladder and other genitourinary organs. But, several other and relatively more common bladder neoplasms may often deceptively simulate it. This dilemma could be resolved easily with the application of proper immunohistochemistry (IHC) in neuroendocrine tumors.
Beuy Joob; Viroj Wiwanitkit
Volume 8, Issue 4 , October 2013, , Pages 283-283
Oral Pathology
Fariba Binesh; Mohammad Hossein Dadgarnia; Yasaman Khaksar; Abbas Mirvakili
Abstract
Paragangliomas are neoplasms of neural crest origin. In the head and neck, they uncommonly involve the larynx. The distinction between paragangliomas and other neuroendocrine tumors can be difficult. Precise diagnosis is important in order to optimize patient treatment. Diagnosis relies mostly on histopathologic ...
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Paragangliomas are neoplasms of neural crest origin. In the head and neck, they uncommonly involve the larynx. The distinction between paragangliomas and other neuroendocrine tumors can be difficult. Precise diagnosis is important in order to optimize patient treatment. Diagnosis relies mostly on histopathologic examination followed by immunohistochemistry. Here we report a 77-year-old woman with laryngeal paraganglioma that initially misdiagnosed as laryngeal carcinoid tumor.
GI, Liver & Pancreas Pathology
Dorsay Sadeghian; Farid Azmoudeh-Ardalan; Simin Dashti-Khavidaki; Nasir Fakhar
Abstract
The occurrence of hepatotoxicity following etanercept (tumor necrosis factor-alpha antagonist) prescription, has been studied well. However, an acute hepatic failure leading to liver transplant as an adverse effect of this drug has not been reported in the literature. In this article, we are going to ...
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The occurrence of hepatotoxicity following etanercept (tumor necrosis factor-alpha antagonist) prescription, has been studied well. However, an acute hepatic failure leading to liver transplant as an adverse effect of this drug has not been reported in the literature. In this article, we are going to present a case of acute liver failure followed by liver transplantation, in a 32 years old man with a previous history of ankylosing spondylitis after etanercept administration. On pathologic examination of the explanted liver, extensive confluent necrosis in all liver segments, as well as prominent infiltration of a mixed population of inflammatory cells in portal tracts, were noted. This study urges the importance of close follow-up of patients receiving etanercept regarding liver complications. Further studies are required to assess the prevalence, risk factors, and outcome of these cases.
Microbiology
Farzad Mohammadi Ebli; Zoheir Heshmatipour; Khadijeh Daneshjou; Seyed Davood Siadat
Abstract
Background & Objective: Streptococcus pneumoniae, Haemophilus influenzae and Streptococcus pyogenes are among the most important causes of infection in human. Inventing rapid methods to identify these species can help in providing appropriate and effective treatment options. Therefore, the current ...
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Background & Objective: Streptococcus pneumoniae, Haemophilus influenzae and Streptococcus pyogenes are among the most important causes of infection in human. Inventing rapid methods to identify these species can help in providing appropriate and effective treatment options. Therefore, the current study aimed to develop a multiplex touch-down PCR method to identify rapidly the aforementioned species patients' sputum samples, simultaneously.Methods: A total of 50 sputum samples of patients with respiratory infections resistant to treatment were collected. After DNA extraction and primer design, the complete capsule (CAP) region II, capsular polysaccharide biosynthesis (cpsA) and the structural regulator of transcription (spy) genes were amplified for detecting H. influenzae, S. pneumoniae and S. pyogenes by multiplex touch-down PCR.Results: Among 50 samples prepared from patients with different diseases, 27 samples were positive for amplified genes. The frequency of presence of pathogens in the collected samples included 14% H. influenzae, 20% S. pneumoniae and 20% S. pyogenes. Also, in some patients, the simultaneous presence of two or three pathogens were observed.Conclusion: In general, it can be concluded that the PCR touchdown method developed in the present study is an effective and fast method for the simultaneous identification of H. influenzae, S. pneumoniae and S. pyogenes pathogens in clinical samples of patients.
Dermatopathology
Soheila Nasiri; Zahra Asadi- kani; Fatemeh Nabavi; Marjan Saeedi
Volume 13, Issue 3 , July 2018, , Pages 377-378
Abstract
Dear Editor-in-ChiefMalignant melanoma is a tumor arising from melanocyte; this tumor rarely occurs before puberty, with higher mortality rate in males and better survival rate in female patients affected by metastatic melanoma (1, 2). These facts propose that a relationship and association may exist ...
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Dear Editor-in-ChiefMalignant melanoma is a tumor arising from melanocyte; this tumor rarely occurs before puberty, with higher mortality rate in males and better survival rate in female patients affected by metastatic melanoma (1, 2). These facts propose that a relationship and association may exist between estrogens and melanoma. The effects of estrogens are mediated by estrogen receptor alpha and beta (3) that are members of the nuclear hormone receptor family. Estrogen receptors act by ligand-dependent binding to the estrogen-response element, leading to transcriptional regulation of target genes (4). Although these receptors have a high degree of homology in the DNA-binding domain, they are different in their N-terminal and ligand-binding domain (E-domain) (5). Moreover; the effects of these two receptors are also different, while estrogen receptor alpha is associated with stimulation of growth. Estrogen receptor beta (ERbeta) is associated with suppression of stimulation or inhibition of cells from multiplying (2). A number of reports show either a decreased expression of ERbeta messenger RNA and ERbeta protein or an increased estrogen receptor alpha/beta mRNA ratio in tumor versus normal tissue in several cancers such as breast, ovary, colon, and prostate (6, 7). As the expression of ERbeta in melanocytic lesions is controversial and finding new diagnostic methods to differentiate between benign and malignant melanocytic lesions is essential, the current study was conducted using immunohistochemical staining to characterize the expression of ERbeta in dysplastic nevi and melanoma. The expression of ERbeta was investigated in 10 patients with melanoma (five male and five female) and 10 patients with dysplastic nevi (seven male and three female) at the Department of Dermatology, Shahid Beheshti University of Medical Science, Tehran, Iran. All cases underwent immunohistochemical analysis according to the method described by de Giorgi et al. (2, 8). Only one of the patients with melanoma had ERbeta expression of grade III and the other nine patients had grade I, but all the dysplastic nevi had grade III staining. Comparison of melanocytes staining levels in the two mentioned groups with the Mann-Whitney U-test revealed a significant difference between estrogen receptor beta staining samples (P-value=0.0002). Results of the current study suggested a probable role for estrogen receptors in melanoma; in addition, it proposed ERbeta as a valuable diagnostic marker to differentiate between benign and malignant melanocytic lesions; however, according to the relatively small number of patients, further comprehensive studies should be conducted to confirm the current studyresults.
Mukta Pujani; Sabina Khan; Sujata Jetley; Prabhat Kumar Raina; Sujata Jetley
Abstract
Hibernomas are extremely rare benign tumors of adipose tissue characterized by an admixture of brown fat cells with granular, multivacuolated cytoplasm and white fat cells. Hibernomas account for 1.6% of benign adipose tissue tumors and approximately 1.1% of all adipocytic tumors. Around 10% of these ...
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Hibernomas are extremely rare benign tumors of adipose tissue characterized by an admixture of brown fat cells with granular, multivacuolated cytoplasm and white fat cells. Hibernomas account for 1.6% of benign adipose tissue tumors and approximately 1.1% of all adipocytic tumors. Around 10% of these cases are intramuscular. It was initially described in the early 1900s as being composed of brown fat. Hibernomas usually occur in third to fourth decades of life and the most frequent sites being thigh, trunk, shoulder, back etc. Cytological differential diagnoses of hibernoma include well differentiated liposarcoma, myxoid/round cell liposarcoma, chondroid lipoma and benign granular cell tumor. Due to its abundant vascularity evident on angiography, it can sometimes mimic a malignant lesion, from which it needs to be distinguished as complete surgical excision is the only treatment required for a hibernoma. Moreover, it has no malignant or metastatic potential. We presented a rare case of intramuscular hibernoma of the scapular region in a 34-year-old male, in which cytology was reported as pleomorphic fibrolipomatous malignant lesion.
Shilpa Bairwa; Bhawna Sethi; Pawan Singh; Ashok Sangwaiya; Shivani Kalhan
Volume 13, Issue 4 , October 2018, , Pages 471-473
Abstract
A choriostoma is an aggregate of microscopically normal cells or tissues which occurs in an aberrant location. It follows a benign course, rarely seen in head and neck region. A choriostoma of the palatine tonsil is very rare; less than 10 cases were reported till date. A 11-year-old male referred to ...
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A choriostoma is an aggregate of microscopically normal cells or tissues which occurs in an aberrant location. It follows a benign course, rarely seen in head and neck region. A choriostoma of the palatine tonsil is very rare; less than 10 cases were reported till date. A 11-year-old male referred to ENT OPD with chronic tonsillitis and underwent tonsillectomy. The histopathological examination revealed the unexpected presence of cartilage and bone in both tonsils.
Hematopathology
Subrata Pal; Kingshuk Bose; Abhishek Sharma; Mrinal Sikder
Volume 11, Issue 5 , October 2016, , Pages 474-477
Abstract
Colorectal carcinoma is a common malignancy in India as well as in world. Inspite of its high metastasizing ability to various organs and lymph node, orbital metastasis is exceptional. Very few cases have been reported in the world literature. We report orbital metastasis in a case of moderately differentiated ...
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Colorectal carcinoma is a common malignancy in India as well as in world. Inspite of its high metastasizing ability to various organs and lymph node, orbital metastasis is exceptional. Very few cases have been reported in the world literature. We report orbital metastasis in a case of moderately differentiated rectal adenocarcinoma in a 58-year male patient from India in 2015. We want to focus on the rare metastatic pathway of rectal adenocarcinoma and early diagnosis of the orbital metastasis, which can help in application of therapy to save the eyesight.
Sulekha Ghosh; Arindam Karmakar; Nikhilesh Dewasi; Krishnendu Das; Debanjan Bhattacharjee; Tapan Kumar Ghosh
Volume 9, Issue 1 , January 2014, , Pages 77-78
Biology & Genetic
Payam Behzadi
Abstract
Dear EditorOn July 21 (Sunday) and 23 (Tuesday) 2019, I had an opportunity to hold another workshop titled “How to write a scientific paper?” for Ph.D. students in Microbiology Department, Basic Sciences Faculty, the Islamic Azad University, Shahr-e-Qods Branch, Tehran, Iran. I received brilliant ...
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Dear EditorOn July 21 (Sunday) and 23 (Tuesday) 2019, I had an opportunity to hold another workshop titled “How to write a scientific paper?” for Ph.D. students in Microbiology Department, Basic Sciences Faculty, the Islamic Azad University, Shahr-e-Qods Branch, Tehran, Iran. I received brilliant feedback from the participants encouraging me to publish this letter to the editor.The difficult work of writing is an art like rasping and grinding a rough diamond to have a polished and smooth diamond (1) or like making a film (2). Publishing peer-reviewed papers is a criterion for evaluating academic professionals and is an effective means of forming an academic career and resume (3).As we know since the ancient era, the published texts are used as public official means to communicate with diverse people and populations. According to the latest archeological studies, the first handwriting belongs to 10400 years ago discovered in Baluchestan Province, the southeast of Iran (4).The primitive means of scripts have evolved and now we have high-tech tools to publish different types of scripts as softcopies and hardcopies, as well as traditional and online publications (4, 5). English as an international language may connect all people around the world. Therefore, publishing scholarly papers in English language journals promotes the visibility and citation of the papers (5, 6).A strong scientific paper needs a clear roadmap, a well-designed study, and an up-to-date quality proposal. Blurry hypothesis, poor-designed study, biases, inappropriate sample size (e.g., very small and limited populations or samples), and wrong or insufficient statistical analyses are the most common reasons for the rejection of papers (6-8).I as a non-native English-speaking author and reviewer believe that the non-native English-speaking authors should think, imagine, and write their manuscripts in English. Many young non-native English-speaking authors write their manuscripts in their native language and then translate into English. This is very harmful because it makes your manuscript of poor quality in academic English language, results in more probability of rejection (7). Consequently, in this challenge, the authors should prepare a well-planned manuscript with a strong and clear hypothesis (it goes back to the proposal) and relevant aims. Moreover, proper statistical analyses and calculations, correspondent methodology, appropriate and precise conclusion, sharp and clear figures, and well-designed and self-explanatory tables augment the opportunity of a manuscript for acceptance (Figure 1) (4, 6, 7, 9, 10). AcknowledgementsI have special thanks to Islamic Azad University, Shahr-e-Qods Branch, Tehran, Iran for approving the perfomance of the workshop on “How to write a scientific paper?”. Conflict of InterestThe authors confirm that there are no known conflicts of interest associated with this publication, and there has been no significant financial support for this work that could have influenced its outcome.
