[Temporo-masseter vascular malformations].

Temporo-masseterine vascular malformations are mature capillarovenous malformations. Being congenital lesions, they are present at birth and progress throughout life, particularly before adolescence. The clinical diagnosis rests on the finding that the malformation swells when the patient is in supine position. Its extent is determined by MRI. Treatment is radiosurgical and always begins with one or several embolizations using Ethibloc. Surgical resection, which is exceptionally complete, may be performed to make the face symmetrical.