Osteoclast-rich, proximal-type epithelioid sarcoma: clinicopathologic features of 3 unusual cases expanding the histomorphological spectrum

Epithelioid sarcoma (ES) displays a wide clinicopathologic spectrum. On histopathology, osteoclast-like giant cells have been rarely described in these tumors. A 45-year-old gentleman presented with a perineal swelling of 6-month duration. Radiologic imaging disclosed a large, highly vascular tumor mass in his perineal region that was diagnosed elsewhere as pigmented villonodular synovitis. A 58-year-old lady presented with a recurrent tumor in her right inguinolabial region for which she underwent multiple tumor resections in the past.

Source: Annals of Diagnostic Pathology - January 22, 2016 Category: Pathology Authors: Bharat Rekhi, Anuj Verma, Nirmala A. Jambhekar, Santosh Menon, Siddhartha Laskar, Nikhil Merchant, Neha Mittal, Ajay Puri Source Type: research