Intussusception Due to Invaginated Meckelʼs Diverticulum

Pseudolipoma of inverted Meckel's diverticulum: clinical, radiological and pathological correlation

“…Meckel's diverticulum is the most prevalent congenital anomaly of the gastrointestinal tract and occurs in approximately 2 % of the population [1][2][3][4][5]. The majority remain asymptomatic.…”

“…The lifetime risk of Meckel's diverticulum causing disease is 4 %, and this figure decreases with age [3]. Common complications include bowel obstruction, with or without intussusception, haemorrhage and diverticulitis [1][2][3][4][5][6][7]. Haemorrhage is most commonly due to peptic ulceration associated with heterotopic gastric mucosa, and presents most commonly in the paediatric age group [4,6,7].…”

“…Haemorrhage is most commonly due to peptic ulceration associated with heterotopic gastric mucosa, and presents most commonly in the paediatric age group [4,6,7]. Two large series reviewing 216 cases of intussuscepted Meckel's diverticulum have shown that virtually all cases are associated with invagination of the diverticulum, which is thought to act as the lead point [1,2]. Peristalsis leading to intussusception after invagination is easily understood, but why invagination occurs in the first place is uncertain.…”

“…Intussusception is a well-recognised complication of Meckel's diverticulum and in virtually all cases Meckel's diverticulum is found to be inverted [1,2]. Isolated inversion of Meckel's diverticulum without intussusception is apparently exceedingly rare.…”

Inverted diverticula of the gastrointestinal tract

“…Only a few cases o f inverted Meckel's diverticula have been r e p o r t e d [1][2][3][4][5], and we were unable to find a r e p o r t of an inverted colonic diverticulum. Felix Fleischner [6] stated that: " I n v e r s i o n of a colonic diverticulum with p r o t r u s i o n into the intestinal lumen appears to be a very rare occurrence.…”