[Segmental portal hypertension caused by aneurysm of the distal splenic artery].

A case is reported of segmental portal hypertension secondary to compression of the splenic vein by an aneurysm of the distal splenic artery. Splenectomy was used to treat the aneurysm and segmental portal hypertension, as well as the hypersplenism existent. Collateral circulation through the short gastric veins originated grade V gastroesophageal varices, which makes this mechanism of production equivalent to that described in cases of thrombosis of the splenic vein.