A Case of Radicular Cyst Extirpation in a Patient with Hereditary Angioedema

Abstract

We report the case of a 35-year-old adult with hereditary angioedema (HAE) who underwent oral surgery under local anesthesia. Hereditary angioedemas are rare but significant events in simple oral surgery because they can cause acute life-threatening laryngeal edema. The patient was diagnosed as left mandibular radicular cyst involving the third molar based on the findings of CT and panoramic radiography. In accordance with the HAE guidelines, C1-INH was injected before surgery and tranexamic acid was administered long-term to avoid angioedema attacks. He underwent tooth extraction and cystectomy under local anesthesia. Although edema was recognized at the proximal phalanx of the middle finger, no other complication occurred during or after surgery.