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Indian Journal of Forensic Medicine and Pathology

Volume  15, Issue 3,  July-September 2022, Pages 191-195
 

Case Report

A Rare and Unusual Renal Tumour: A Case Report

Azeem I1, Mary Lilly S2, Kaushika3, Tanusha Ethamakula

12nd year Post Graduate, 2Professor & HOD, 33rd year Post Graduate, 4Assistant Professor, Department of Pathology, Sree Balaji Medical College, Chennai 600044, Tamil Nadu, India.

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DOI: doi: https://dx.doi.org/10.21088/ijfmp.0974.3383.15322.8

Abstract

introduction: Multilocular cystic renal cell neoplasm of low malignant potential is a rare histologically identified form of clear cell renal cell carcinoma included in 2016 Renal tumour classification of WHO. It is a low risk neoplasm with clear cells that have less expansile proliferation than other clear cell variants of renal cell carcinoma with no recurrence and metastasis with few exceptional cases. The incidence of multilocular cystic renal cell carcinoma is estimated to be 1-2 percent.6,12 Although the WHO classification of multilocular cystic renal cell carcinoma with low malignant potential was reported in 2004. The WHO 2016 categorization of renal cell tumour has been assessed as a special entity with no documented cases of metastasizing and recurrent tumour development.4

We present a rare clinical case of multilocular cystic renal cell neoplasm with low malignant potential, which should not be mistaken with other differential diagnoses such as cystic necrosis in conventional renal cell carcinoma, tubulo cystic renal cell carcinoma, multilocular cystic nephroma, clear cell variant of renal cell carcinoma and other benign multilocular renal tumors.


Keywords : Multilocular cystic neoplasm of low-gradepotential; CD 10; Cytokeratin 7 (CK 7); PAX8; Carbonic anhydrase IX and EMA.
Corresponding Author : Mary Lilly S, Professor & HOD, Department of Pathology, Sree Balaji Medical College, Chennai 600044, Tamil Nadu, India