[Primary hydatic cyst of the tail of the pancreas. Segmental portal hypertension].

An uncommon purulent primitive hydatic cyst of the pancreatic tail with segmental portal hypertension and gastric varix is reported. Recognition of gastric varix on angiography and immunological diagnosis of hydatidosis clarified the ethiology of hematemesis. Surgical resection of the spleen and pancreas tail cured the patient's recurrent hemorrhages.