Cerebral chondrosarcoma in a patient treated for a nonHodgkin's lymphoma of the gastrointestinal tract.

Second malignancies, including hematological malignancies and sarcomas of b one and soft tissue, have frequently been reported after chemotherapy and r adiation therapy for a childhood cancer. A case of cerebral chondrosarcoma with an infratentorial neurinoma is reported in a patient treated five and a half years earlier by prophylactic central nervous system radiation and t he IGR COPAD chemotherapy regimen for a non-Hodgkin's lymphoma of the gastr ointestinal tract. The chondrosarcoma met Cahan's criteria for cancer treat ment-related cancer. Wide surgical resection is currently the only curative treatment available for this rare, slowly growing tumor.