EXTRA-ABDOMINAL DESMOID FIBROMATOSIS

Desmoid fibromatosis cannot be considered a biologically benign or inn ocuous lesion. In the head and neck it may be intraosseous (desmoplast ic fibroma) or, more often, in soft tissues, with the highest incidenc e in the supraclavicular region of the neck. High recurrence and persi stence rates, 50% or more, accompany intralesional or marginal excisio n. Keloids and proliferative scars, while stubborn in their resolution and potentially disfiguring, are reactive proliferative disorders of fibroblastic and myofibroblastic tissues.