Inverted Meckel diverticulum shown by enteroclysis.

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

“…In two other cases abdominal pain was the predominant symptom [12,15], but a coexisting intussuscepting jejunal polyp was present in one of these cases [15]. The remaining 7 cases (5 males and 2 females, mean age 48 years, range 26-78 years) all presented with anaemia and/or gastrointestinal bleeding [13,14,16,[18][19][20][21]. Abdominal pain was not a presenting symptom in these cases and in two the absence of pain was specifically recorded [13,19].…”

“…A recent review of 25 years of experience at the Armed Forces Institute of Pathology reported five such cases [11], but separate details of the individual cases were not recorded. We could only find another 12 case reports in the international literature [10,[12][13][14][15][16][17][18][19][20][21]. Three of these cases progressed to intussusception by the time of surgery [10,17].…”

“…An SBE is considered to be the most dependable radiological method for demonstrating a Meckel's diverticulum [22], and this is also true when the diverticulum is inverted. Small bowel follow-through demonstrated five of eight cases [11,13,[15][16][17][18][19]21], whereas SBE was positive in all six cases [12,18,20] where the type of examination was recorded. Reflux of barium into the small intestine during a barium enema can also demonstrate an inverted Meckel's diverticulum [10,12,14,17].…”

Inverted Meckel's diverticulum simulating a pedunculated small bowel polyp

“…It is estimated that approximately 4% of patients with Meckel's diverticulum will develop complications, with a male to female ratio of 3 or 4 to 1 [2,3,7,8]. Small bowel obstruction, diverticulitis, and hemorrhage represent the most common clinical manifestations [1,9].…”

“…Meckel's diverticulum is the most common anomaly of the gastrointestinal tract with an estimated prevalence of 1-2% based on autopsy series [2,3]. However, the radiographic demonstration of an isolated inverted Meckel's diverticulum is rare with only four cases previously reported in the English literature [4][5][6][7]. We report herein the radiographic features in a fifth case and briefly review the literature.…”