[Desmoid tumors (invasive fibromas) in the mouth and maxillofacial region (clinical aspects and pathology)].

The desmoid is the independent pathological entity of a non-metastasizing fibroma invading the local neighboring structures. It is derived from fascia, aponeuroses or tendines. In rare cases it is found in the oral and maxillofacial region. For a firm diagnosis, it is absolutely necessary to combine clinical data (location, size growth, behavior vis-a-vis adjacent structures) with pathologic-anatomic findings (invasion of the adjacent tissue, especially musculature). In this respect, examination of the marginal regions is of decisive importance. Because of the frequency of recurrences and the danger of sarcomatous degeneration, radical resection is the therapy indicated.