A 65-year-old man is sent to the emergency room owing to a sudden change in mental state. The patient was eating supper with his family when he began to struggle with his fork and seemed bewildered. Type 2 diabetes, hyperlipidemia, and hypertension are among the other medical disorders. The patient is a high school mathematics teacher with a smoking history of 40 packs per year. The blood pressure is 180/98 mm Hg, and the pulse rate is 98 beats per minute. Physical examination reveals that the patient is well-oriented, responds correctly to inquiries, and has no motor, sensory, or visual abnormalities. He can't add basic numbers like 17 + 9; he also can't recognize or distinguish his fingers. Which of the following brain areas is most likely affected in this patient?

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Eductional Objective: Damage to the parietal association cortex, which integrates multimodal information, can result in issues with understanding and problem-solving even in the absence of motor or sensory abnormalities. Gerstmann syndrome is often caused by specific lesion to the angular gyrus (agraphia, acalculia, finger agnosia, and left-right disorientation).

A 65-Year-Old Man Is Sent to the Emergency Room Owing