Department of Clinical Radiology, Ninewells Hospital and Medical School, Dundee, UK.
Clin Radiol. 2012 Feb;67(2):172-81. doi: 10.1016/j.crad.2011.08.019. Epub 2011 Oct 22.
A wide spectrum of disease entities can affect the external auditory canal (EAC). This review describes the normal anatomy of the EAC. Congenital abnormalities, infections, neoplasms, and miscellaneous conditions, such as cholesteatoma and acquired stenosis, are shown with reference to clinical relevance and management. Cases have been histologically confirmed, where relevant. The EAC is frequently imaged - for example, on cross-sectional imaging of the brain - and this review should stimulate radiologists to include it as an important area for review.
外耳道（EAC）可受到多种疾病的影响。本文介绍了 EAC 的正常解剖结构。文中阐述了与临床相关性和处理相关的先天性异常、感染、肿瘤以及胆脂瘤和后天性狭窄等其他各种情况。在相关情况下，病例均经组织学证实。EAC 经常进行影像学检查，例如脑的横断面成像，本文应能激发放射科医生将其作为一个重要的检查部位。
