抄録
The findings in the temporal bone of a 62-year-old male patient who died of generalized metastasis of malignant melanoma are reported. Autopsy revealed multiple metastatic foci in the brain and cranial pia mater. Histopathological examination of the temporal bone revealed invasion of bilateral internal auditory canals by malignant melanoma cells. The mode of invasion of the temporal bone by the malignant melanoma cell appear to reflect diffuse leptomeningeal carcinomatosis. None of the clinical manifestations, such as hearing loss, tinnitus, vertigo, or facial paralysis, were noted in this patient, because of no degeneration of the nervous tissue in the auditory canal.
