下顎大臼歯抜歯後に生じた仮性動脈瘤の1例

抄録

We report a pseudoaneurysm that developed after tooth extraction and was treated by transcatheterarterial embolization (TAE). The patient was an 84-year-old woman. Immediately after lower second molar extraction, remarkable swelling developed in the sublingual region. Slightly prolonged bleeding from the second molarregion of the right lower jaw was noted after extraction. The bleeding was controlled by local hemostatic material.On the third day after the extraction, swelling of the sublingual region increased and extended to the floor of themouth. The site corresponding to the wound after extraction showed a pseudoaneurysm on cystographic MRI. Weperformed hemostasis by TAE. The day after TAE, the pseudoaneurysm had disappeared on cystographic CT.The postoperative course was uneventful, without further bleeding.