This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
A man presents with history of hemetemesis of about 500 ml of blood. On examination, spleen is palpable 5 cms below the left costal margin. The most likely diagnosis is: 
Select and explain. 
A. Poal Hypeension, B. Gastric ulcer, C. Drug induced, D. Mallory Weiss Tear
A: Poal Hypeension
Answer: A: Poal Hypeension 
Explanation: Answer is A (Poal Hypeension) Hemetemesis in a patient with palpable splenomegaly suggests a diagnosis of variceal blood secondary to poal hypeension. Hemetemesis from Gastric ulcer, Mallory Weiss tear and/or drug induced gastritis is not associated with splenomegaly.