Using EMA and Calretinin on Cell Blocks for the Differentiation of Reactive Mesothelial Cells from Adenocarcinoma Cells in Pleural Effusions
Publish Year: 1401
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JKMU-29-4_002
تاریخ نمایه سازی: 19 دی 1401
Abstract:
Background: Effusion in body cavities can be considered as the presentation of malignancy or inflammatory conditions. Pleural fluid cytology is a popular diagnostic tool for the differentiation of adenocarcinoma cells (AC) from reactive mesothelial cells (RMC). However, there are many sources of controversies and errors in this technique that should be addressed.Methods: This case-control study aimed to evaluate the use of immunohistochemistry markers, namely epithelial membrane antigen (EMA) and calretinin, on cell blocks to differentiate between RMC and AC in pleural effusions. Suspected malignant effusions were selected according to the clinical data and their equivocal cytological smears. A total of ۸۰ samples corresponding to the fresh specimens sent from the Department of Internal Medicine to the Cytology Laboratory of Faghihi Hospital during Jan ۲۰۱۷-Feb ۲۰۱۸ comprised the case group. In addition, the control group entailed ۸۰ non-malignant pleural samples with RMC.Results: We observed that ۷۴ (out of ۸۰) effusion samples were strongly positive for EMA (۹۲.۵%). The sensitivity, specificity, and efficiency of the EMA marker were ۹۲.۵%, ۹۵%, and ۹۳.۷%, respectively. The results of the calretinin assessment indicated ۷۸ (out of ۸۰) positive cases in the control group (۹۷.۵%). The sensitivity, specificity, and efficiency of calretinin staining were ۹۷.۵%, ۹۸.۷%, and ۹۸.۱%, respectively.Conclusion: According to the results of the current study, EMA and calretinin are two reliable markers with acceptable accuracy in differentiating between RMC and AC.
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Authors
Massood Hosseinzadeh
Department of Pathology, Shiraz University of Medical Sciences, Shiraz, Iran
Neda Soleimani
Department of Pathology, Shiraz University of Medical Sciences, Shiraz, Iran
Maryam Mohammadnia Avval
Department of Pathology, Shiraz University of Medical Sciences, Shiraz, Iran
Perikala Vijayananda Kumar
Department of Pathology, Shiraz University of Medical Sciences, Shiraz, Iran
Navid Omidifar
Department of Pathology, Shiraz University of Medical Sciences, Shiraz, Iran
Mansoureh Shokripour
Department of Pathology, Shiraz University of Medical Sciences, Shiraz, Iran
Sahand Mohammadzadeh
Department of Pathology, Shiraz University of Medical Sciences, Shiraz, Iran
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