<prompt> Main cause of congestive splenomegaly.CCFMalariaDICBanti syndrome  <response>: Ans. d Banti syndromeRef: Internet sourcesBanti syndrome: Congestive splenomegaly caused by obstruction of Portal veins, Splenic Veins, Hepatic veins resulting in Portal hypertension, Ascites, Thrombocytopenia, Leukopenia and Upper GI haemorrhage. 