Breast Pathology
Hiva Saffar; Dorna Motevalli; Nasibeh Seirfar; Mahsa Ebrahimi; Perikala Vijayananda Kumar; Farid Kosari; Hedieh Moradi Tabriz; Sadaf Naderi; Golsa Shekarkhar
Abstract
Myofibroblastoma (MFB) of the breast is an uncommon entity of benign spindle neoplasms of the breast. This tumour possesses a broad spectrum of histomorphological patterns. Distinguishing of myofibroblastoma variants from malignant mimics of this benign neoplasm is essential for pathologists to avoid ...
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Myofibroblastoma (MFB) of the breast is an uncommon entity of benign spindle neoplasms of the breast. This tumour possesses a broad spectrum of histomorphological patterns. Distinguishing of myofibroblastoma variants from malignant mimics of this benign neoplasm is essential for pathologists to avoid further invasive surgical procedures. In this article, we report the clinical, morphological, and immunohistochemical features of three cases, including two females and one male patient with mammary myofibroblastoma with emphasis on the histomorphological findings. As there is not yet enough information about MFB, more reports of MFB are still required to more clarify the pathogenesis and potential predisposing factors of this rare type of breast tumours.
GI, Liver & Pancreas Pathology
Farid Kosari; Raika Jamali; Tayeb Ramim; Ebrahim Musavi Jahan Abad
Abstract
Background & Objective: The aim of this present study was to assess the relationship between serum zinc levels and liver histopathological findings in non-alcoholic steatohepatitis (NASH) patients.Methods: This case-control study was performed in consecutively selected NASH patients who had been ...
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Background & Objective: The aim of this present study was to assess the relationship between serum zinc levels and liver histopathological findings in non-alcoholic steatohepatitis (NASH) patients.Methods: This case-control study was performed in consecutively selected NASH patients who had been referred to a general hospital. The control group consisted of age and sex-matched individuals with normal physical examinations, laboratory findings, and liver ultrasounds. Serum zinc level was measured using atomic absorption spectrophotometry. Liver histopathological findings were determined based on non-alcoholic fatty liver activity score.Results: A cohort of eighty biopsy-proven NASH patients and eighty controls were enrolled in the study. The mean serum zinc level was significantly lower in the NASH group compared with the controls. The mean serum zinc concentration was significantly lower in moderate and severe lobular inflammation groups than the mild group. After multiple adjustments for potential contributing variables, serum zinc level was associated with the severity of lobular inflammation. Nonetheless, it was not associated with liver steatosis and fibrosis. A serum zinc value of 89 (µg/dl) yielded a sensitivity and specificity of 93% and 86%, respectively, characterizing patients with lobular inflammation of less than two inflammatory foci per high-power field (HPF) from more advanced groups. Furthermore, a value of 79.55 (µg/dl) yielded a sensitivity and specificity of 87% and 100%, respectively, distinguishing those with a lobular inflammation grade of less than four foci per HPF from more advanced cases. Conclusion: Serum zinc level might be associated with the severity of lobular inflammation in NASH.
Farid Kosari; Fatemeh Ghaffari
Volume 13, Issue 4 , October 2018, , Pages 390-396
Abstract
Background and Objective: Hodgkin's lymphoma is a potentially curable hematologic malignancy with difficulty in its diagnosis especially in atypical cases even in expert hands. Today, immunohistochemistry plays a significant role in the diagnosis of it especially applying the anti-CD15 and anti-CD30 ...
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Background and Objective: Hodgkin's lymphoma is a potentially curable hematologic malignancy with difficulty in its diagnosis especially in atypical cases even in expert hands. Today, immunohistochemistry plays a significant role in the diagnosis of it especially applying the anti-CD15 and anti-CD30 antibodies. The negativity of CD15 can be reduced by antigen retrieval for methods. In this study, the effect of autoclave was compared with microwave as heating sources of antigen retrieval in immunohistochemical staining.Methods: Sections prepared from 50 formalin-fixed paraffin-embedded tissue blocks of Classic Hodgkin's lymphomas stained for CD15 and CD30 using autoclave and microwave, were randomly and blindly reviewed by an expert hematopathologist, mostly focusing on Reed-Sternberg cells; the intensities were scored from 0 to +4 and analyzed by SPSS software.Results: Fifty eight percent of patients were male. The mean age was 32 years (range: 7 to 77). Nodular sclerosis was the most prevalent subtype. CD15 positivity in microwave treatment was 92% compared to 50% in autoclave. Negative CD30 decreased from 20% in autoclave to 2% in microwave. Intensity of staining in both markers was at least +1 greater in microwave treatment. No background staining was seen in microwave method.Conclusion: There was bimodal age distribution in Hodgkin's lymphoma patients with the predominant male and Nodular Sclerosis as the most common type. Comparing autoclave and microwave, higher rate of the positivity was detected using microwave treatment, especially in CD15 staining. Improvement in staining intensity was also noticeable in both markers. There was no background or non-specific staining in microwave method. No disturbance of cells or nuclear morphology was also reported. PMID: 30774676 PMCID: PMC6358563
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 .
Farid Kosari; Sanam Akbarzadeh; Hiva Saffar
Abstract
Background:Alpha-synuclein is a member of synuclein family of proteins with unidentified function localized in the cytoplasm, mitochondria of neurons, and presynaptic nerve endings. Although it is found in the Lewy bodies in synucleinopathies and in Alzheimer’s disease, the protein could also be ...
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Background:Alpha-synuclein is a member of synuclein family of proteins with unidentified function localized in the cytoplasm, mitochondria of neurons, and presynaptic nerve endings. Although it is found in the Lewy bodies in synucleinopathies and in Alzheimer’s disease, the protein could also be considered as a novel marker in diagnosis of diseases related to the hematopoietic system.
Methods: The current study evaluated alpha-synuclein expression in bone marrow sections obtained from 9 patients with acute myeloblastic leukemia (AML)-M6, 2 patients with AML-M7, and 56 patients with other forms of AML by immunohistochemical (IHC) analysis Results: Seven out of 9 cases with erythroleukemia (66.7%) and 1 of the 2 cases with M7 (50%) were positive. In contrast; the blasts in 2 out of 56 AML cases with non-M6/M7 (3.6%) showed positive staining. Accordingly, alpha-synuclein was positive in normal erythroid precursors and megakaryocytes (if existing) in these cases; while, it was negative in lymphoid and myeloid precursors. Conclusion: Alpha-synuclein expression in non-neoplastic and neoplastic erythroid cells and megakaryocytes could be used as a complementary and useful marker for distinction between AML-M6/M7 and other types of AML
Farid Kosari; Hana Saffar; Hamed Zamani; Rasoul Sotoudehmanesh; Amir Pejman Hashemi Taheri; Masoud Sotoudeh
Volume 6, Issue 2 , April 2011, , Pages 97-100
Abstract
Primary non-Hodgkin lymphoma of liver is a very rare malignancy. Here we report a case of primary hepatic Burkitt’s lymphoma in a 34-year old man who was known case of acquired immunodeficiency syndrome (AIDS) and presented with weight loss, abdominal pain, and fever. Positive laboratory ...
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Primary non-Hodgkin lymphoma of liver is a very rare malignancy. Here we report a case of primary hepatic Burkitt’s lymphoma in a 34-year old man who was known case of acquired immunodeficiency syndrome (AIDS) and presented with weight loss, abdominal pain, and fever. Positive laboratory findings were mild anemia and elevated levels of lactate dehydrogenase (LDH) and alkaline phosphatase (ALP).Abdominal computed tomography (CT) showed multiple large low- density mass lesions in both lobes of liver with no evidence of regional or distant lymphadenopathy or metastasis. Liver needle biopsy was done and both histological and immunohistochemical findings were compatible with Burkitt’s lymphoma.
Farid Kosari; Naghmeh Amin Taheri; Alireza Sadeghipour; Kamran Alimoghaddam; Ardeshir Ghavamzadeh
Volume 6, Issue 1 , January 2011, , Pages 8-12
Abstract
Background and Objectives: Epstein Barr Virus (EBV) is one of the members of herpesviridae family and a sub-category of Gamma herpes virinae. EBV, which normally has CR2 or CD21 receptors on B-lymphocytes, has mutagenic features for them. The virus plays an important role in causing some malignant ...
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Background and Objectives: Epstein Barr Virus (EBV) is one of the members of herpesviridae family and a sub-category of Gamma herpes virinae. EBV, which normally has CR2 or CD21 receptors on B-lymphocytes, has mutagenic features for them. The virus plays an important role in causing some malignant cancers. About 30% of the cases with non-Hodgkin’s lymphoma are diffuse large B-cell lymphoma (DLBCL). In the present study, the incidence rate of EBV in DLBCL was evaluated.
Materials and Methods: Immunohistochemistry (IHC) and PCR methods were used for studying the relationship between EBV and DLBCL. Paraffin blocks of 116 patients from Sina & Shariati hospitals, Tehran, Iran, with DLBCL diagnoses in 2005-2009 were collected. EBV-LMP in IHC and PCR virus genome in PCR were examined.
Results: Findings of the PCR method showed that 28 cases of the total 116 patients with DLBCL were EBV positive (the frequency of EBV positivity was correspondingly 40% and 60% in females and males) and this shows a 25.8% EBV frequency in DLBCL. IHC findings showed that six cases were EBV positive. The compatibility of positive IHC and PCR responses was two cases and there are four conflicting cases.
Conclusion: It seems that PCR is a more appropriate method for diagnosing EBV and IHC cannot solely prove the presence of EBV in DCBCL patients.
Background and Objectives: Epstein Barr Virus (EBV) is one of the members of herpesviridae family and a sub-category of Gamma herpes virinae. EBV, which normally has CR2 or CD21 receptors on B-lymphocytes, has mutagenic features for them. The virus plays an important role in causing some malignant cancers. About 30% of the cases with non-Hodgkin’s lymphoma are diffuse large B-cell lymphoma (DLBCL). In the present study, the incidence rate of EBV in DLBCL was evaluated.
Materials and Methods: Immunohistochemistry (IHC) and PCR methods were used for studying the relationship between EBV and DLBCL. Paraffin blocks of 116 patients from Sina & Shariati hospitals, Tehran, Iran, with DLBCL diagnoses in 2005-2009 were collected. EBV-LMP in IHC and PCR virus genome in PCR were examined.
Results: Findings of the PCR method showed that 28 cases of the total 116 patients with DLBCL were EBV positive (the frequency of EBV positivity was correspondingly 40% and 60% in females and males) and this shows a 25.8% EBV frequency in DLBCL. IHC findings showed that six cases were EBV positive. The compatibility of positive IHC and PCR responses was two cases and there are four conflicting cases.
Conclusion: It seems that PCR is a more appropriate method for diagnosing EBV and IHC cannot solely prove the presence of EBV in DCBCL patients.
Background and Objectives: Epstein Barr Virus (EBV) is one of the members of herpesviridae family and a sub-category of Gamma herpes virinae. EBV, which normally has CR2 or CD21 receptors on B-lymphocytes, has mutagenic features for them. The virus plays an important role in causing some malignant cancers. About 30% of the cases with non-Hodgkin’s lymphoma are diffuse large B-cell lymphoma (DLBCL). In the present study, the incidence rate of EBV in DLBCL was evaluated.
Materials and Methods: Immunohistochemistry (IHC) and PCR methods were used for studying the relationship between EBV and DLBCL. Paraffin blocks of 116 patients from Sina & Shariati hospitals, Tehran, Iran, with DLBCL diagnoses in 2005-2009 were collected. EBV-LMP in IHC and PCR virus genome in PCR were examined.
Results: Findings of the PCR method showed that 28 cases of the total 116 patients with DLBCL were EBV positive (the frequency of EBV positivity was correspondingly 40% and 60% in females and males) and this shows a 25.8% EBV frequency in DLBCL. IHC findings showed that six cases were EBV positive. The compatibility of positive IHC and PCR responses was two cases and there are four conflicting cases.
Conclusion: It seems that PCR is a more appropriate method for diagnosing EBV and IHC cannot solely prove the presence of EBV in DCBCL patients.
Background and Objectives: Epstein Barr Virus (EBV) is one of the members of herpesviridae family and a sub-category of Gamma herpes virinae. EBV, which normally has CR2 or CD21 receptors on B-lymphocytes, has mutagenic features for them. The virus plays an important role in causing some malignant cancers. About 30% of the cases with non-Hodgkin’s lymphoma are diffuse large B-cell lymphoma (DLBCL). In the present study, the incidence rate of EBV in DLBCL was evaluated.
Materials and Methods: Immunohistochemistry (IHC) and PCR methods were used for studying the relationship between EBV and DLBCL. Paraffin blocks of 116 patients from Sina & Shariati hospitals, Tehran, Iran, with DLBCL diagnoses in 2005-2009 were collected. EBV-LMP in IHC and PCR virus genome in PCR were examined.
Results: Findings of the PCR method showed that 28 cases of the total 116 patients with DLBCL were EBV positive (the frequency of EBV positivity was correspondingly 40% and 60% in females and males) and this shows a 25.8% EBV frequency in DLBCL. IHC findings showed that six cases were EBV positive. The compatibility of positive IHC and PCR responses was two cases and there are four conflicting cases.
Conclusion: It seems that PCR is a more appropriate method for diagnosing EBV and IHC cannot solely prove the presence of EBV in DCBCL patients.
Background and Objectives: Epstein Barr Virus (EBV) is one of the members of herpesviridae family and a sub-category of Gamma herpes virinae. EBV, which normally has CR2 or CD21 receptors on B-lymphocytes, has mutagenic features for them. The virus plays an important role in causing some malignant cancers. About 30% of the cases with non-Hodgkin’s lymphoma are diffuse large B-cell lymphoma (DLBCL). In the present study, the incidence rate of EBV in DLBCL was evaluated.
Materials and Methods: Immunohistochemistry (IHC) and PCR methods were used for studying the relationship between EBV and DLBCL. Paraffin blocks of 116 patients from Sina & Shariati hospitals, Tehran, Iran, with DLBCL diagnoses in 2005-2009 were collected. EBV-LMP in IHC and PCR virus genome in PCR were examined.
Results: Findings of the PCR method showed that 28 cases of the total 116 patients with DLBCL were EBV positive (the frequency of EBV positivity was correspondingly 40% and 60% in females and males) and this shows a 25.8% EBV frequency in DLBCL. IHC findings showed that six cases were EBV positive. The compatibility of positive IHC and PCR responses was two cases and there are four conflicting cases.
Conclusion: It seems that PCR is a more appropriate method for diagnosing EBV and IHC cannot solely prove the presence of EBV in DCBCL patients.
Sanaz Sanii; Farid Kosari; Kian Khodadad
Volume 6, Issue 1 , January 2011, , Pages 46-50
Abstract
Primary Hepatic Lymphoma (PHL) is rare and possibly associated with viral hepatitis and autoimmune diseases. Scleroderma could exceptionally be complicated by lymphoma. We describe PHL occurring in a 52-year-old female suffering scleroderma for eight years, with no history of cytotoxic or high-dose ...
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Primary Hepatic Lymphoma (PHL) is rare and possibly associated with viral hepatitis and autoimmune diseases. Scleroderma could exceptionally be complicated by lymphoma. We describe PHL occurring in a 52-year-old female suffering scleroderma for eight years, with no history of cytotoxic or high-dose glucocorticoid therapy. CT scan, performed to work-up abdominal discomfort, constipation, and elevated alkaline phosphatase, showed a liver mass. Following left hepatic lobectomy, diffuse large B-cell lymphoma was diagnosed by pathological evaluations. Shortly after operation, chemotherapy began. The patient is alive and free of disease eight years after diagnosis of primary hepatic lymphoma. To the best of our knowledge, this is the first case of Primary Hepatic Lymphoma occurring in the setting of long-standing scleroderma. The fact that our patient had no history of immunosuppressive/ high-dose glucocorticoid therapy may indicate that similar immunologic abnormalities have pathogenetic role in both scleroderma and nonHodgkin’s lymphoma.
Farid Kosari; Hedieh Moradi Tabriz; Sanaz Saniee
Volume 4, Issue 4 , September 2009, , Pages 186-189
Abstract
In Riedel’s thyroiditis, a rare chronic inflammatory disease of thyroid gland, fine needle aspiration is usually non-diagnostic because most often only follicular cells are obtained and not the fibrous material characteristic of this type of thyroiditis. Therefore the diagnosis is often only established ...
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In Riedel’s thyroiditis, a rare chronic inflammatory disease of thyroid gland, fine needle aspiration is usually non-diagnostic because most often only follicular cells are obtained and not the fibrous material characteristic of this type of thyroiditis. Therefore the diagnosis is often only established by histopathologic study of the surgically obtained biopsy. The illustrated case is a 46-year-old female who presented with a firm, non-mobile thyroid nodule of the left lobe. Fine needle aspiration was performed, demonstrating fragments of fibrous tissue and few inflammatory cells including neutrophils and lymphocytes, findings that could be representative of Riedel’s thyroiditis. Frozen section examination during subsequent surgery and later histopathologic study confirmed the diagnosis. Fine needle aspiration of the thyroid, if successfully done, could be highly suggestive for Riedel’s thyroiditis.
