Shinkawa A, Sakai M, Ishida K
Department of ORL, Tokai University School of Medicine, Isehara, Japan.
Auris Nasus Larynx. 1998 Jan;25(1):95-9. doi: 10.1016/s0385-8146(97)10032-3.
A 64-year-old Japanese male patient, status post-stapedectomy, presented with progressive, bilateral SNHL of 30 years' duration. CT showed extensive demineralization of the otic capsule, suggestive of otospongiotic change in both ears. There were no hyperostotic lesions found, which would have been suggestive of otosclerotic change. MRI showed a morphologically intact membranous labyrinth in both ears, with no obstruction of the cochlear lumen. It was concluded that the patient has progressive otospongiotic change of the otic capsule, but no otosclerotic change.
一名64岁的日本男性患者，在接受镫骨切除术后，出现了持续30年的进行性双侧感音神经性听力损失。CT显示耳囊广泛脱矿，提示双耳存在耳海绵化改变。未发现骨质增生性病变，而骨质增生性病变提示耳硬化改变。MRI显示双耳膜迷路形态完整，耳蜗管腔无梗阻。结论是该患者存在耳囊进行性耳海绵化改变，但无耳硬化改变。
