EXTRA SKELETAL MESENCHYMAL CHONDROSARCOMA :A CASE REPORT

Chondrosarcoma is a common primary bone neoplasm . It includes a heterogeneous group of tumor types characterized by the production of a cartilage matrix. Chondrosarcoma has a classic intra osseous origin, however extra skeletal origin is not uncommon. The Mesenchymal variant accounts for only 2 % of all chondrosarcomas and is a high grade ,aggressive tumor with bimorphic histological features. Mesenchymal chondrosarcoma is chiefly an osseous tumor and extra osseous origin in rare .This tumor type contrasts from conventional chondrosarcoma in its unique chemotherapy and radiotherapy sensitivity. We report a case of extra skeletal mesenchymal chondrosarcoma and review current literature on this unique variant .