Microbiology
Saeed Mirsadraee; Mihan Pourabdollah Toutkaboni; Mehrdad Bakhshayeshkaram; Mitra sadat Rezaei; Elham Askari; Sara Haseli; Nazanin Sadraee
Abstract
Background & Objective: Diagnosis of coronavirus disease 2019 (COVID-19) can be challenging, especially when the realtime quantitative reverse transcription polymerase chain reaction (RT-PCR) is not available or it is negative. In this study, we evaluated imaging and laboratory findings in a ...
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Background & Objective: Diagnosis of coronavirus disease 2019 (COVID-19) can be challenging, especially when the realtime quantitative reverse transcription polymerase chain reaction (RT-PCR) is not available or it is negative. In this study, we evaluated imaging and laboratory findings in a group of patients with a multidisciplinary diagnosis of COVID-19 pneumonia. Methods: A total of 163 patients with a clinical diagnosis of COVID-19 pneumonia admitted to a specialised respiratory centre in Tehran, Iran were enrolled in this study. The distribution and characteristics of presenting radiological and laboratory findings were evaluated and the relationship to the outcome was investigated. Results: RTPCR was positive in 92 patients. The diagnosis of COVID-19 in RT-PCR negative patients was made on clinical and radiological grounds (n=71). Also, 24 (14.7%) patients died. The common computed tomography (CT) scan findings included ground-glass (94%) and consolidating opacification (12%), mainly in the lower lobes (90%). Peripheral and central lung changes were observed in 90% and 52% of patients, respectively. Lymphopenia, positive CRP, and raised LDH were present in 32%, 65%, and 96% of cases, respectively. A raised LDH of >500U/L was the best predictor of death in these patients (R2=0.6623; OR=24.4). Other markers of outcome were male gender, age (>50 years), lymphopenia, and severe CXR changes. Conclusion: Diagnosis of COVID-19 can be challenging, and a multidisciplinary approach is often needed. Whilst RT-PCR is the standard diagnostic test, a negative test should be interpreted with caution. Blood tests and imaging can be useful in the diagnosis, monitoring, and risk assessment in patients with COVID-19.
Shahram Sabeti; Forough Yousefi; Mihan Pourabdollah Toutkaboni
Abstract
Ollier’s syndrome, a variant of multiple enchondromatosis, is a rare disease with an estimated prevalence of 1/100,000, characterized by multiple enchondromas, asymmetrically involving small bones of the hands and feet, especially the proximal phalanges. Intracranial enchondromas, such as those ...
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Ollier’s syndrome, a variant of multiple enchondromatosis, is a rare disease with an estimated prevalence of 1/100,000, characterized by multiple enchondromas, asymmetrically involving small bones of the hands and feet, especially the proximal phalanges. Intracranial enchondromas, such as those arising from the skull base are extremely rare. Herein, we report a 25-year-old female, known case of Ollier’s disease, presenting with right eyelid ptosis and visual disturbance. Brain MRI revealed a skull base tumour suspicious to enchondroma followed by trans-sphenoidal resection. Histologic examination of the excisional biopsy sample confirmed the diagnosis of enchondroma. How to cite this article: Sabeti S, Yousefi F, Pourabdollah Toutkaboni M. Enchondroma of the Skull Base in a Case of Ollier’s Syndrome. Iran J Pathol. 2015;10(3):237-42.
Shahram Sabeti; Sara Zahedifard; Hussein Soleimantabar; Manijeh Zarghampour; Mihan Pourabdollah Toutkaboni
Abstract
Pericardial hemangioma is very rare and their coincidence with other visceral hemamgiomas is exceptional. We are reporting a 72-year-old man with an incidentally discovered pericardial hemangioma during coronary artery bypass graft (CABG) and mitral valve replacement surgery and a prior history of multiple ...
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Pericardial hemangioma is very rare and their coincidence with other visceral hemamgiomas is exceptional. We are reporting a 72-year-old man with an incidentally discovered pericardial hemangioma during coronary artery bypass graft (CABG) and mitral valve replacement surgery and a prior history of multiple hepatic cavernous hemangiomas. This case has been reported due to its extreme rarity. To the best of our knowledge, this is the second case of this kind reported till date.
Shahram Sabeti; Farhad Malekzad; Nastaran Neishaboori; Mihan Pourabdollah Toutkaboni; Farahnaz Bidarizerehpoosh
Volume 9, Issue 4 , October 2014, , Pages 245-250
Abstract
Background & Objectives: CD10 is a cell surface enzyme with metalloendopeptidase activity, also known as Common Acute Lymphoblastic Leukaemia Antigen, which mainly serves as a marker for acute lymphoblastic leukemia (ALL). To date and to the best of our knowledge, only few comparative immunohistochemical ...
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Background & Objectives: CD10 is a cell surface enzyme with metalloendopeptidase activity, also known as Common Acute Lymphoblastic Leukaemia Antigen, which mainly serves as a marker for acute lymphoblastic leukemia (ALL). To date and to the best of our knowledge, only few comparative immunohistochemical studies have assessed CD10 expression in cutaneous epithelial neoplasms. Our goal was to determine whether CD10 can be used in pathologic distinction of cutaneous basal cell carcinoma (BCC) and squamous cell carcinoma (SCC). Methods: This study included 27 BCC and 17 SCC cases immunohistochemically stained for CD10. Cytoplasmic +/- cell membrane staining was considered as positive. Each slide was studied by two pathologists and scored semi- quantitatively as follows: negative (<10%); 1+ (10-50% positive cells); and 2+ (>50% positive cells). Results: The rate of CD10 expression in tumor cells was significantly higher in BCCs in comparison to SCCs. (20/27 vs., 2/17; P <0.0001). Discussion: Our findings suggest CD10 as a useful adjunct marker in distinguishing cutaneous BCC and SCC.
