Herniation through the foramen of Winslow is a rare condition that can lead to a delayed diagnosis and treatment with a high mortality rate. In most reported cases, patients present to the emergency department with symptoms suggesting intestinal obstruction or with sudden and severe pain in the upper abdomen. Symptoms are non-specific. Clinical diagnosis may be difficult or even missed. The widespread availability of cross-sectional imaging can improve the percentage of correct preoperative diagnosis. We report a case of a caecal and right colic herniation through the foramen of Winslow found incidentally on abdominal computed tomography in a patient presenting with mild epigastric pain.

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Le bypass gastrique avec anse en Y selon Roux (BPG) est l'intervention de choix dans la prise en charge de l'obésité morbide, mais elle comporte une morbidité spé-cifique et significative. Les complications précoces et tardives (éventration, sténose de l'anastomose gastro-jéjunale et hernie interne) sont décrites dans la littérature. Nous présen-tons une complication tardive inhabituelle de hernie interne. Mots clés Bypass gastrique · Laparoscopie · Hernie interne · Complications postopératoiresAbstract Gastric bypass is the procedure of choice for the surgical management of morbid obesity and its complications. It has specific and significant complications). Early and late complications (wound hernia, stenosis of the gastrojejunal anastomosis and internal hernia) are well documented in the literature. We report an undescribed late complication with a particular type of internal hernia.