Partial nodular transformation of the caudate lobe of the liver presenting with ascites.

Partial nodular transformation is a rare condition which effects the perihilar portion of the liver and may cause chronic portal hypertension. This case report describes an elderly women in whom the condition was confined to the caudate lobe, which had become greatly enlarged and, by external compression of th portal vein at the hilum of the liver, had caused portal vein thrombosis and subsequent acute ascites.