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
[{'content': 'The most common feature seen in patients with non cirrhotic poal fibrosis is: \nSelect and explain. \nA. Gastric varices, B. Esophageal varices, C. Ascites, D. Poal gastropathy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Impoant manifestations of non cirrhotic poal fibrosis Common: Esophageal varices (97%) Gastric varices (31%) Pancytopenia Increased INR Decreased fibrinogen Rare manifestations: Ascites (transient) 25% Poal gastropathy (3%) Ref: Medicine Update 2012 Vol. 22.', 'role': 'assistant'}]