This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Anatomy
[{'content': 'A 50 year old male presented with history of hematemesis - 500ml of blood and on examination shows BP- 90/60, PR-110bpm and splenomegaly 5cm below lower costal margin. Most probable diagnosis is \nSelect and explain. \nA. Malory-weiss tear, B. Duodenal ulcer, C. Gastritis, D. Poal hypeension', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Splenomegaly and massive bleeding leading to hypotension are in our of poal hypeension. Common causes of upper Gastrointestinal Hemorrhage Non-variceal bleeding (80%) Poal Hypeensive Bleeding (20%) Peptic ulcer disease (MC) 30-40% Gastroesophageal varices >90% Malory-weiss tear 15-20% Hypeensive poal gastropathy <5% Gastritis or duodenitis 10-15% Isolated gastric varices <5% Esophagitis 5-10% Aeriovenous malformations 5% Tumors 2% Others 5% Ref: Sabiston 20th edition Pgno : 1142', 'role': 'assistant'}]