悪性化した Chondromyxoid fibroma と考えられる1例

抄録

Chondromyxoid fibroma is one of the rare benign neoplasms. The authors have been experienced a case of malignant fibrous hissocytoma changed from chondromyxoid fibroma.
A forty three-year-old male was admitted with a pathological fracture of the proxymal part of the left tibia. Curettage and bone grafting were performed. The neoplasm was diagnosed as chondromyxoid fibroma. However, the patient was reoperated because of a local recurrence after twenty months. Moreover, three months later, radiographic evidence of metastases was observed in lung and other regions.
The patient died as a result of general metastases. The final histological diagnosis was malignant fibrous histiocytoma.