Herniation of the buccal fat pad into the maxillary antrum: CT findings in three cases.

We report the first 3 cases in which CT disclosed herniation of the body of the buccal fat pad into the maxillary antrum. Only 20 cases of traumatic herniation of the buccal fat pad have been described in the literature. In all except one instance, the buccal fat pad herniated into the oral cavity. The only previous report of herniation of the buccal fat pad into the maxillary antrum is in an article published before modern cross-sectional imaging, and the diagnosis was not made preoperatively in that case.