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Year : 2021  |  Volume : 17  |  Issue : 1  |  Page : 164-169

Role of WT1, B-cell lymphoma 2, Ki-67 (Mib1), and Her2/Neu as diagnostic and prognostic immunomarkers in ovarian serous and endometroid carcinoma

1 Department of Pathology, Diamond Harbour Government Medical College, Diamond Harbour, West Bengal, India
2 Department of Pathology, Mission of Mercy Hospital, Durgapur, West Bengal, India
3 Department of Pathology, Bankura Sammilani Medical College, Bankura, West Bengal, India

Correspondence Address:
Santosh Kumar Mondal
“Subarnabhumi Complex,” Kamini III, Flat A302, 36 Gorakshabashi Road, Dum Dum, Kolkata - 700 028, West Bengal
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jcrt.JCRT_311_19

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Background: Ovarian cancer is the fifth common cause of death due to cancer in women. It constitutes 3% of all cancers in females and 15%–20% of genital malignancy. Most of the ovarian cancers are serous type followed by the endometrioid type. Sometimes, glands of these two carcinomas are indistinguishable histologically. It also becomes difficult to differentiate these two types when they are poorly differentiated. Aims: The aim of this study was to find differences in immunomarker expressions between serous and endometrioid carcinomas and the association of their staining patterns with other clinicopathological prognostic factors. Materials and Methods: Immunohistochemical staining for WT1, B-cell lymphoma 2 (Bcl2), Ki67 (MIB1), and Her2/Neu were done in paraffin-embedded tissues of histologically diagnosed 38 cases of ovarian serous and endometrioid carcinomas and staining patterns were correlated with other clinicopathological prognostic factors. Results: Of these 38 cases (21 serous and 17 endometrioid), 24 cases were in Stage I/II and 14 cases Stage III/IV. On the other hand, 16 cases were in low grade, 12 cases intermediate grade, and 10 cases high grade. Twenty of 21 serous carcinomas were strongly positive for WT1, whereas most of the endometrioid carcinomas were negative. Ki67 (MIB1) labeling index and Her2/Neu were higher in both higher grade and stages. On the contrary, the intensity of Bcl2 staining was lower in higher grades and stages lesions. Conclusions: The use of WT1 may be useful in resolving diagnostic dilemma between serous and endometrioid carcinoma, especially in difficult cases. Ki67, Bcl2, and Her2/Neu may be used as prognostic markers.

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