This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: JIPMER 2018, Subject name: Medicine
What is the site of lesion in a patient with alexia without agraphia? 
Select and explain. 
A. Fusiform gyrus, B. Inferior occipital gyrus, C. Psalternum, D. Splenium
D: Splenium
Answer: D: Splenium 
Explanation: Alexia without agraphia (or Pure alexia) Patient is unable to read, despite preservation of other aspects of language such as a spelling and writing. Due to lesions in left occipital coex and posterior pa of corpus callosum known as splenium. Due to interruption of visual input into language network. The blood vessel involved is posterior cerebral aery.