Tenosynovial Giant Cell Tumor of Diffuse Type in Ankle and Foot - A Case Report

A 18 year old male presented with longitudinally oriented mass at the posteromedial aspect of his left distal lower extremity, most prominent just superior to medial malleolus. FNAC of this lesion is inconclusive Suggestive of Giant Cell Lesion. Conventional radiograph and MR Imaging findings were suggestive of Soft Tissue Sarcoma. Finally biopsy report proved to be out Giant Cell Tumor of Diffuse Type. A below Knee amputed specimen received to the Pathology Department which on Gross dissection showed well encapsulated, multinodular tumor mass. Sections showed benign pattern of tumor tissue conclusive as Giant Cell Tumor of Diffuse Type. It accounts approximately 1.6% of all soft tissue tumors with a substantial incidence of recurrence. Thus to conclude we reported a case of Tenosynovial Giant Cell Tumor of Diffuse Type in Ankle and Foot in a Young Adult.