Lauundoye S B, Martinson F D, Fajemisin A A
Br J Radiol. 1975 Mar;48(567):170-5. doi: 10.1259/0007-1285-48-567-170.
Three cases of keratosis obturans, which were studied by tomography of the petrous temporal bone, are described. The widening of the deep bony part of the external auditory canal by pressure erosion of an impacted benign slowly-growing mass is the key radiological finding. Erosion was so severe as to involve the facial nerve canal in one and the temporo-madibular joint in two cases. The theories of causation are reviewed. Tomography using elliptical tube movement was valuable in diagnosis, pre- and post-operative management.
本文描述了3例经颞骨岩部体层摄影术研究的闭塞性角化病。影像学的关键发现是，外耳道深部骨质部分因受到良性缓慢生长肿物的压迫侵蚀而增宽。侵蚀非常严重，其中1例累及面神经管，2例累及颞下颌关节。本文对病因学理论进行了综述。采用椭圆管移动的体层摄影术对诊断、手术前后的处理均有重要价值。
