Turner J S, Saunders A Z
Laryngoscope. 1984 Jul;94(7):901-3. doi: 10.1288/00005537-198407000-00007.
Patients with suspected retrocochlear disease are usually evaluated with stapedial reflex studies and BSER. Positive responses on these tests usually indicate the need for CT scans with air contrast myelogram. We have been impressed with the lack of sensitivity of these audiometric tests in separating tumor from non-tumorous causes. Although we have never found an acoustic neuroma or cerebellopontine angle tumor without stapedial reflex and BSER abnormalities, we have encountered 20 patients who have strong evidence to support a retrocochlear tumor on audiometric testing but with negative CT with air contrast scans. This report will deal with our experience with these cases and indicate the necessity for obtaining air contrast CT scans before alarming the patient about a retrocochlear disorder or possible surgery. There appear to be many non-tumorous disorders associated with stapedial reflex decay and positive BSER.
疑似蜗后疾病的患者通常通过镫骨肌反射检查和脑干听觉诱发电位（BSER）进行评估。这些检查的阳性反应通常表明需要进行气脑造影CT扫描。我们对这些听力测试在区分肿瘤与非肿瘤病因方面缺乏敏感性印象深刻。尽管我们从未发现没有镫骨肌反射和BSER异常的听神经瘤或桥小脑角肿瘤，但我们遇到了20例患者，他们在听力测试中有强有力的证据支持蜗后肿瘤，但气脑造影CT扫描结果为阴性。本报告将阐述我们对这些病例的经验，并指出在告知患者患有蜗后疾病或可能需要手术之前进行气脑造影CT扫描的必要性。似乎有许多非肿瘤性疾病与镫骨肌反射衰减和BSER阳性有关。
