A 70 yr old male is having difficulty in understanding written language and there is no associated problem in understanding auditory information. He was in good health except for a recent head trauma after an accidental fall from the stairs. What will be the most probable diagnosis?

Anomic aphasia: occurs due to lesion in angular gyrus. This is most commonly seen in head trauma, metabolic encephalopathy and alzheimers disease. In anomic aphasia there is trouble only in understanding picture or written language, understanding of speech or auditory information is normal. Ref: Ganong's Review of Medical Physiology, 22nd Edition, Page 274