n. a tumour that contains *macrophages or *histiocytes, large cells with the ability to engulf foreign matter and bacteria. See also fibrosarcoma.
Also known as histiocytoma. A ?rm, painless nodule in the skin, typically on a leg, due to excessive formation of COLLAGEN. A common disorder, it is often a slow response to an insect bite and persists inde?nitely.... dermatofibroma
n. a malignant tumour of connective tissue, derived from *fibroblasts. Fibrosarcomas may arise in soft tissue or bone; they can affect any organ but are most common in the limbs, particularly the leg. They occur in people of all ages and may be congenital. The cells of these tumours show varying degrees of differentiation; the less well differentiated tumours containing elements of histiocytes have been recently reclassified as malignant fibrous histiocytomas.... fibrosarcoma
Health Encyclopedia