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
Which of the following is the classical triad of Budd-Chiari syndrome? 
Select and explain. 
A. Fever, jaundice, abdominal pain, B. Fever, ascites, jaundice, C. Hepatomegaly, abdominal pain, ascites, D. Abdominal pain, jaundice, hepatomegaly
C: Hepatomegaly, abdominal pain, ascites
Answer: C: Hepatomegaly, abdominal pain, ascites 
Explanation: 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