Cortical deafness: demonstration of the pathologic anatomy by CT scan.
A 27-year-old man with a prosthetic mitral valve had bilateral cerebral infarcts that caused a nonfluent aphasia, oral apraxia, and deafness. A computer-assisted tomographic scan showed symmetrical bilateral temporoparietal lesions. A review of the literature on other cases of cortical auditory deficits suggests that the clinical syndrome of pure word deafness in many cases is probably a less severe form of cortical deafness and is due to less extensive bilateral temporal gray matter lesions. However, strictly white matter lesions may produce some cases of either syndrome.
D000328:Adult; D001037:Aphasia / Q000209:etiology; D001072:Apraxias / Q000209:etiology; D003638:Deafness / Q000209:etiology*; D006801:Humans; D002542:Intracranial Embolism and Thrombosis / Q000150:complications / Q000175:diagnosis*; D008297:Male; D010296:Parietal Lobe / Q000098:blood supply; D013702:Temporal Lobe / Q000098:blood supply; D014057:Tomography, X-Ray Computed