抄録
In a 77-year-old female with glomus tympanicum tumor, otoscopic examination revealed a reddish pulsatile mass in the tympanic cavity expanding laterally. CT findings showed the tumor occupying the tympanum and irregular bony wall of the promontry. Angiographic findings revealed that the main feeding artery of the tumor was the branch of the middle meningeal artery. Preoperative embolization was performed and the tumor was completely resected using the transmastoid extended facial recess approach. The total amount of bleeding during the surgery was 20 ml. KTP laser was useful to shrink and coagulate the tumor without bleeding.
