Massive bleeding after a tooth extraction: diagnosis of unkn
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Arteriovenous malformations (AVMs) are very rare. Only 5% of them occurs in the jaws but they can manifest with dramatic bleeding and be life-threatening.We report the case of an 11-year-old healthy girl who presented a massive hemorrhage after extraction of the right mandibular first primary molar. This patient received a blood transfusion and was hospitalized in pediatric intensive care unit. CT angiography highlighted an AVM of the mandible.Treatment consisted in selective embolization.A review of the literature shows that the majority of AVMs of the jaws are often unknown until severe bleeding occurs during dental surgery. The low specificity of radiological signs on panoramic radiography makes the diagnosis particularly challenging. Their management requires an interdisciplinary approach. Selective embolization has a place of choice in the treatment of these complex pathologies...

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