ÇOCUKTA İSKELET DIŞI MEZENKİMAL KONDROSARKOM: OLGU SUNUMU

We present a case of childhood mesenchymal chondrosarcoma in a 11 year old boy who reported 6 month history of a painless mass in his neck region. Greatest dimension of the resected mass was 5 cm and the light microscopic examination demonstrated the characteristic bimorphic pattern of mesenchymal chondrosarcoma. This bimorphic pattern was composed of nodules of well differentiated benign appearing cartilaginous tissue and sheets of undifferentiated cellular areas. Since mesenchymal chondrosarcoma is a fully malignant tumor that pursues a rapid clinical course and metastasizes in a high percentage of cases, combined radical surgery and chemotherapy or radiotherapy is the treatment of choice proposed. But because of his parents' refusal, our patient did not received subsequent therapy. FolloW up studies revealed no evidence of recurrence 6 months after surgery.