[Progress and stagnation in chemotherapy protocols for primary osteosarcoma].

Thirty years ago, osteosarcoma of a limb meant amputation and death. Two years after diagnosis, 80% of the patients died from pulmonary metastases, despite early amputation. In 2002, more than 70% of these patients can be cured.

[Diagnosis and treatment of malignant bone fibrohistiocytoma].

Malignant fibrous histiocytoma (MFH) and giant cells sarcoma arise from fibrous tissue and histiocytic cells evenly distributed in all age group, except children much less common than osteosarcoma and chondrosarcoma. They most commonly localize in the major long bones (femur, tibia, humerus) and in pelvis. Pain and sometimes swelling are the most frequent symptoms but pathologic fractures are rather common.