[Metastasizing malignant histiocytoma]

Report on a case of a 68-year-old woman suffering from a fast growing tumor, initially manifesting in the dermis. At first, the histological findings were judged as a spindle-cell sarcoma. Further histological investigations revealed that the tumor was a malignant histiocytoma. Tumors of this kind are rarely found in the scarce group of the sarcomas of the soft tissues. Since its identification as an entity, the interest in this malignant tumor has been increased. Other clinical, histological and electronmicroscopic findings in this patient are compared with those in the literature; the actual state of therapy is presented.