Phelps P D, Lloyd G A, Sheldon P W
Br J Radiol. 1977 Oct;50(598):714-27. doi: 10.1259/0007-1285-50-598-714.
Congenital deformities of the external and middle ears were shown by tomography in 246 patients. Surgical exploration has been undertaken at some time in many of these ears. The appearance of the tomograms and their significance were reviewed in the light of the operative findings and the authors' experience of congenital ear lesions. In nearly every case a middle ear cavity could be demonstrated although this varied from a normally aerated middle ear and mastoid in association with an isolated unilateral atresia of the external auditory meatus to a small slit-like hypotympanum in patients with craniofacial abnormalities. The ossicles were nearly always present but deformed. The typical appearances of the ossicles and the frequently aberrant pathways of the facial nerve are described.
246例患者的颞骨断层扫描显示有先天性外耳和中耳畸形。其中许多耳朵都曾在某个时候进行过手术探查。根据手术结果以及作者对先天性耳部病变的经验，对断层扫描的表现及其意义进行了回顾。几乎在每一例中都能显示出中耳腔，尽管其情况各不相同，从与孤立性单侧外耳道闭锁相关的正常含气中耳和乳突，到颅面畸形患者中狭小的裂隙状鼓室。听小骨几乎总是存在但有畸形。文中描述了听小骨的典型表现以及面神经常见的异常走行。
