Gingival Bleeding of a High-Flow Mandibular Arteriovenous Malformation in a Child with 8-Year Follow-Up

Abstract EN

Intraosseous arteriovenous malformations (AVMs) in the head and neck region are uncommon.

There are several types and they can have a wide range of clinical presentations.

Depending on the blood flow through the AVM, the treatment may be challenging for the attending team and may lead to life-threatening hemorrhages.

A clinical case report is presented.

A 9-year-old girl, seen for gingival bleeding during oral hygiene, was found to have a high-flow AVM located within and around the mandible.

Two-stage treatment consisted of intra-arterial embolization followed by intraoral injection of a sclerosing agent 8 weeks later.

At the 8-year follow-up, imaging study showed no evidence of recurrent lesion inside or outside the bone.

The final outcome is a correct occlusion with a symmetric facial result.

This case shows that conservative treatment may be the first treatment option mostly in children.

Arteriography and transcortical injection were enough to control the AVM.