Differences of history, symptoms and signs of 19 patients with cerebellopontine angle tumor diagnosed by Otolaryngologists and physicians with other specialities were investigated. Deafness was the main symptom which led to final diagnosis by Otolaryngologists in 77% of patients. On the other hand, symptoms of high cerebellar pressure was the main symptom which let to the final diagnosis by physicians of other specialities. It is emphasized that deafness is a cue for the diagnosis of cerebello pontine angle tumor.