外傷後の上顎洞内仮性動脈瘤例

抄録

We describe herein a rare case of a traumatic pseudoaneurysm affecting the maxillary sinus. An 83-year-old man presented with intractable epistaxis was admitted to our hospital. He had fallen down, hitting his face on the ground three days before hospitalization. He presented with epistaxis that could be controlled with anterior nasal packing, however, his blood tests revealed anemia which became worse in 24 hr. Paranasal sinus CT imaging showed a mild bone fracture of the maxillary sinus and a hematoma in the maxillary sinus, so we performed contrast-enhanced CT (CECT) to verify the active bleeding site. The CECT showed that there was a pseudoaneurysm affecting the maxillary sinus. To confirm the bleeding site, angiography was performed. Angiograms showed a pseudoaneurysm arising from the right posterior superior alveolar artery. The patient successfully underwent transarterial embolization therapy to control the bleeding.