This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
Gerstmann syndrome occurs due to damage to 
Select and explain. 
A. Left inferior parietal region, B. Left temporal region, C. Right Inferior parietal region, D. Right temporal region
A: Left inferior parietal region
Answer: A: Left inferior parietal region 
Explanation: (A) Left inferior parietal region # Gerstmann's Syndrome is a combination of:1. Acalculia (impairment of simple arithmetic),2. Dysgraphia (impaired writing),3. Finger anomia (an inability to name individual fingers such as the index and thumb), &4. Right-left confusion (an inability to tell whether a hand, foot, or arm of the patient or examiner is on the right or left side of the body).> Diagnosis: it is important to establish that the finger and left-right naming deficits are not part of a more generalized anomia and that the patient is not otherwise aphasic.> Gerstmann's syndrome arises acutely & is commonly associated with damage to the inferior parietal lobule (especially the angular gyrus) in the left hemisphere.