Regression of congenital fibrosarcoma to hemangiomatous remnant with histological and genetic findings.

We report a rare case of congenital fibrosarcoma (CFS) showing regression during the course of disease, in which the histological and genetic alterations were investigated. This CFS, located on the patient's right hand, was a hemangiopericytomatous hypervascular tumor showing frequent mitosis and necrosis. Small lymphocytes, predominantly cytotoxic T cells… CONTINUE READING