fibromatosis

The term fibromatosis refers to a group of soft tissue tumors which have certain characteristics in common, including absence of cytologic and clinical malignant features, a histology consistent with proliferation of well-differentiated fibroblasts, an infiltrative growth pattern, and aggressive clinical behavior with frequent local recurrence. It is classed by the World Health Organization as an intermediate soft tissue tumor related to the sarcoma family. Arthur Purdy Stout coined the term fibromatosis (in the name congenital generalized fibromatosis, describing myofibromatosis), in 1954.

==Diagnosis== ===Juvenile subtypes=== Subtypes of juvenile fibromatosis include: Infantile myofibromatosis: solitary tumors commonly occurring in the head and neck regions; multiple tumors occurring in the skin, subcutaneous tissue, muscles, and/or less commonly bones; or, rarely, tumors occurring in an internal organ(s). Aponeurotic fibroma Infantile digital fibromatosis Aggressive infantile fibromatosis Fibromatosis colli: benign sternocleidomastoid muscle tumor developing in infants within 8 weeks (average: 24 days) of delivery. It generally does not require resection and responds well to physiotherapy. Dermatofibrosis lenticularis (Buschke–Ollendorff syndrome) Fibromatosis hyalinica multiplex (juvenile hyaline fibromatosis) Lipofibromatosis