Temporal lobe tumor clinical features

Temporal lobe tumors may cause: difficulty speaking and understanding language; short-term and long-term memory problems; increased aggressive behavior.

Several possible mechanisms for epileptogenesis by temporal lobe tumors have been proposed, including gliosis, mass effect on surrounding cortex, changes in cellular morphology, and others.

Unilateral temporal lesion Contralateral homonymous upper quadrantanopia (sector anopsia) Complex hallucinations (smell, sound, vision, memory) Dominant hemisphere Receptive aphasia Wernicke's aphasia Anomic aphasia Dyslexia Impaired verbal memory Word agnosia, word deafness Non-dominant hemisphere Impaired non-verbal memory Impaired musical skills Bitemporal lesions (additional features) Deafness Apathy (affective indifference) Impaired learning and memory Amnesia, Korsakoff syndrome, Klüver–Bucy syndrome