Stern J, Goldenberg M
AJR Am J Roentgenol. 1980 May;134(5):959-61. doi: 10.2214/ajr.134.5.959.
Upward extension or diverticulum of the jugular bulb is rare. Most often, it protrudes into the middle ear. Three patients are reported in whom direct superior extension from the medial portion of the jugular bulb resulted in a defect in the medial part of the petrous bone. In this position, a jugular bulb diverticulum relates directly to the posterior wall of the internal auditory canal. The distinctive radiographic characteristics of this entity obviate unnecessary investigation and surgery. Encroachment on the internal auditory canal may possibly contribute to neurosensory hearing deficit.
颈静脉球向上延伸或形成憩室较为罕见。多数情况下，它突入中耳。本文报告了3例患者，颈静脉球内侧部分直接向上延伸导致岩骨内侧部分出现缺损。在此位置，颈静脉球憩室直接与内耳道后壁相关。该病变独特的影像学特征可避免不必要的检查和手术。对内耳道的侵犯可能导致神经感觉性听力减退。
