[Herniation of the cecum and ascending colon through Winslow's foramen and the lesser omentum. A case report].

Internal hernia into epiploic foramen is a rare clinical entity, representing 1% of all herniae and 8% of internal herniae. We report a peculiar case of internal herniation presented during a laparotomy for acute colecystitis where the caecum and ascending colon entered the lesser sac through the forame of Winslow and reentered the main abdominal cavity through a congenital defect of the lesser omentum.

[Lymphoma of the residual gastric stump].

The authors report a case of non-Hodgkin's lymphoma (lymphoplasmocytoid type) arisen on the gastric stump of a patient operated 18 years before according to Billroth II gastric resection for peptic ulcer. They underline the extraordinary rarity of the event because this type of neoplasia never arises on the gastric stump, where would be more likely to find, due to irritative chemical stimuli of the biliary reflux, phenomena of intestinal metaplasia or severe dysplasia highly predisposing to adenocarcinomas. Furthermore, they stress the importance of a "deep" bioptic examination for a diagnosis as early as possible of this type of pathology.