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Littré’s hernia is caused by the protrusion of Meckel’s diverticulum through an orifice in the abdominal wall. Alexis de Littré (1700) described ileal diverticula and attributed them to the traction realized on the ileum, conflicting with the description that August Gottlieb Richter gave in the year 1785. Both descriptions ignored the embryological origin mentioned later by Johann Friedrich Meckel in 1809. Note that Sir Frederic Treves (1897) distinguished between Littré’s hernia and Richter’s hernia (a lateral pinch in the small intestine, but without Meckel’s diverticulum). Meckel’s diverticulum is a remnant of the proximal portion of the omphalomesenteric duct, which links the embryonic intestine with the umbilical bladder until the fifth week of gestation. It arises from the antimesenteric surface of the ileum, near the ileocecal valve, generally at a distance of about 30 to 90 cm. It usually measures from 4 to 6 cm in length and 2 cm in diameter. The incidence of Meckel’s diverticulum is 2% and normally it is not symptomatic. Only 4-6% of cases will produce symptoms (more frequent during infancy), the principal manifestation being rectal bleeding, sometimes massive, due to the presence of gastric mucosa. Obstruction, intussusception and, more rarely, diverticulum to bladder fistulae and tumours may occur. The incidence of Littré’s hernia is unknown and not many cases are found in the literature. We present a case of elective surgery in which we found a Meckel’s diverticulum in a large groin hernia. Clinical case

Littré´s hernia: unusual find in inguino-scrotal hernial repair