Resumen

ESTRADA SARMIENTO, M.; VIRREYES ESPINOSA, L.I.  y  GONZALES PARDO, S.. Arteriovenous fistula of the lower lip: Case report. Rev Esp Cirug Oral y Maxilofac [online]. 2007, vol.29, n.5, pp.325-329. ISSN 2173-9161.

The object of this work is to present our experience in the surgical management of an arteriovenous fistula in the lower lip of a fifteen year-old patient as a result of a bite. The patient was diagnosed initially as having a trauma-induced hemangioma, which was treated with steroid and surgical exeresis. Four years later, a larger tumor appeared. The external carotid artery was dissected and an arteriography of the carotid was carried out that gave the diagnosis of arteriovenous fistula. Ligation was carried out of the facial artery and of the venous vessels for isolation from the circulation. Four injections were given with 4cc of betamethasone into the mass. Later 4 additional injections were given with intervals of 3 weeks. Four months after the ligation of the vessels, the fibrous mass was excised. Five years have now passed since the last intervention and there has been no recurrence. The importance of the angiography should be highlighted for diagnosing and treating this very rare pathological entity.

Palabras clave : Arteriovenous fistula; Angioma; Vascular malformation.

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