MALIGNANT FIBROUS HISTIOCYTOMA ORIGINATING IN THE MEDIASTINUM - REPORT OF A CASE

Malignant fibrous histocytoma (MFH) is a tumor which most often develo ps in the soft tissues of the extremities and retroperitoneum, but ver y rarely originates in the mediastinum. We report herein the case of a 63-year-old man who underwent surgical resection of a rapidly growing tumor in the right thoracic cavity which was diagnosed as an MFH of m ediastinal origin on the basis of histological findings, the definitiv e diagnosis ultimately being made by specific immunostaining.