[Malignant fibrous histiocytoma of the mediastinum]. / Histiocitoma fibroso maligno mediastínico.

Soft tissue sarcomas are neoplasms which envolve from mesodermic tissue, being characterized for their low incidence (1% of all malignant tumors), histologic heterogeneity and diverseness regarding their localization. We present a new case of this infrequent tumor: malignant fibrous histiocytoma of exceptional localization: mediastinum.