中耳腔之異位內頸動脈－病例報告

An Aberrant Internal Carotid Artery in the Middle Ear - Case Report

蕭富修(Fu-Shiou Shiau) ； 林厚鈞(How-Jiun Lin) ； 林凱南(Kai-Nan Lin)

《中華民國耳鼻喉科醫學雜誌》 37卷1期 (2002/01) Pp. 59-61

https://doi.org/10.6286/2002.37.1.59

摘要

中耳腔之異位內頸動脈，文獻報導極少。文獻上曾有報告此症被誤為腫瘤或合併中耳積水而予以活體切片或耳膜穿刺，因而造成出血不止，甚至導致聽力喪失或半身癱瘓的嚴重後果。因此，對類似這類病例應存高度警覺，並作詳細檢查，確定診斷，以防不當處置造成原本不應發生之併發病。本病例為一20歲女性，於2001年2月間因右耳脈動性耳鳴一個多月而來本院就診。局部可見右耳鼓膜內前下方有一紅色腫塊，在有所警覺下，安排顳骨高解像度電腦斷層檢查，證實為中耳之異位內頸動脈。病人並無其他症狀，故未施以外科治療，僅予詳細解釋，並囑咐不可隨便接受鼓膜切開及探查手術。

關鍵字

內頸動脈異位 ； 脈動性耳鳴

並列摘要

An aberrant internal carotid artery in the middle ear is a rare otological finding. This anomaly may result in serious hemorrhage if a tympanotomy is performed or during middle ear manipulation if the otologist is unaware.
A 20-year-old lady is described, who presented complaining of right sided pulsatile tinnitus. An intratympanic reddish mass was noted in the right ear and was confirmed by high resolution CT of the temporal bone to be an aberrant intratympanic internal carotid artery and no attempt was to correct the anomaly. The patient was given advice about the condition and cautioned against the risks of manipulations including biopsy or paracentesis on the middle ear.

並列關鍵字

aberrant internal carotid artery ； pulsatile tinnitus