Characteristic morphology and immunohistochemical patterns of clear cell papillary renal cell tumours may be observed in renal cell carcinomas, a critical pitfall in renal biopsy cytopathology.

Abstract excerpt

BACKGROUND: Clear cell papillary renal cell tumour (CCPRCT) was renamed from previous clear cell papillary renal cell carcinoma (CCPRCC) in the latest WHO Classification of Tumours. It is essential to differentiate RCC from CCPRCT in renal mass biopsies (RMB). DESIGN: RMB cases with subsequent resections were reviewed. The pathology reports and pertinent clinical information were recorded. RESULTS: Fifteen cases...

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