INTRAVENOUS MYOFIBROBLASTIC PSEUDOTUMOR OF THE BUCCAL MUCOSA

An intravenous pseudotumour at a traumatised site of the buccal mucosa of a 68-year-old woman is described. The lesion was composed of react ive spindle cell proliferation, merging of haphazard bizarre cells and inflammatory elements. Cellular morphology and immunohistochemical pr ofile of proliferating cells reflected that of myofibroblasts. Conceiv ably, these cells may be derived from indigenous vascular smooth muscl e cells. The present case represents a unique type of a reparative pro cess intimately related to the tissue damage. (C) 1998 Elsevier Scienc e Ltd. All rights reserved.