臨床
難聴をきたした内頸動脈鼓室内走行異常例
2023 年 116 巻 2 号 p. 123-127
詳細
2023 年 116 巻 2 号 p. 123-127
An aberrant internal carotid artery running within the tympanic cavity is a rare disease that is seen in about 1% of the population. Herein, I report a case of an aberrant internal carotid artery running within the tympanic cavity. The patient was a 73-year-old man who presented with pulsatile tinnitus, aural fullness, and hearing loss on the left ear. A mass in the left tympanic cavity could be recognized through the ear drum. Existence of an air-bone gap was confirmed on audiometry. CT examination revealed the aberrant internal carotid artery running within the tympanic cavity, which was considered to be pressing against the ear drum and malleus, causing the pulsatile tinnitus, aural fullness, and hearing loss. There is the possibility of massive bleeding, etc., with tympanostomy, and surgical treatment is necessary.
