This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Poal Hypeension, Subject name: Surgery
[{'content': 'Which of the following is the classical triad of Budd-Chiari syndrome? \nSelect and explain. \nA. Fever, jaundice, abdominal pain, B. Fever, ascites, jaundice, C. Hepatomegaly, abdominal pain, ascites, D. Abdominal pain, jaundice, hepatomegaly', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Classical triad of Budd - Chiari syndrome is Ascites Hepatomegaly (Mnemonic - AsHA) Abdominal pain Etiology of Budd - Chiari syndrome: Hepato-venous outflow obstruction caused by Hepatic venous Thrombosis /IVC obstruction Acutely obstruction results in tender hepatomegaly. Chronically liver is atrophied but caudate lobe will be hyperophied IOC for diagnosis - venography TOC in hepatic failure - liver transplantation TOC in Hepatic vein thrombosis - shunt - preferred shunt is side to side poocaval shunt', 'role': 'assistant'}]