EP.TU.542Enterolith ileus secondary to small bowel diverticulum: a rare cause of small bowel obstruction

Small intestinal diverticula are rare and possibly acquired secondary to bowel dyskinesia, abnormal peristalsis or high intraluminal pressures. Enterolith formation within these diverticula and intra-luminal bowel obstruction from them are a less encountered complication. A seventy-five year old man, with no history of abdominal surgery, presented with 10 days of colicky right iliac fossa pain and recurrent episodes of bilious vomiting. He initially reported diarrhoea but complained of eventual absolute constipation for last 5 days. Physical examination revealed distended abdomen with right-sided tenderness and no mass or faeces were noted on rectal examination. Biochemistry indicated raised inflammatory markers and an acute kidney injury. Abdominal CT scan revealed a 3.5 cm calculus in the distal ileum causing obstruction initially flagged as gallstone ileus. No gallstones or pneumobilia were identified although some intrahepatic duct dilatation was noted. An emergency laparotomy was conducted, where the radiological findings were reinforced and the calculus was extracted via enterotomy. There were no abnormal communications between gallbladder and intestinal tract suggestive of passage of gallstone to ileum. The small bowel traced from duodenojejunal flexure to terminal ileum did not reveal any further calculi or diverticula. FTIR spectrum analysis of the extracted specimen indicated similarities to enterolith. Retrospective analysis of radiological images revealed a possible duodenal diverticulum. The case highlights the diagnostic conundrum and therapeutic challenges of small bowel diverticular enterolith.

637 Enterolith Ileus Secondary to Small Bowel Diverticulum: A Rare Cause of Small Bowel Obstruction

Small intestinal diverticula are rare and possibly acquired secondary to bowel dyskinesia, abnormal peristalsis, or high intraluminal pressures. Enterolith formation and obstruction are a less encountered complication of these diverticula. An elderly man, with no history of abdominal surgery, presented with 10 days of colicky right iliac fossa pain and recurrent episodes of bilious vomiting. He initially reported diarrhoea but complained of eventual absolute constipation for last 5 days. Physical examination revealed distended abdomen with right-sided tenderness and no mass or faeces on rectal examination. Abdominal CT revealed a 3.5 cm calculus in the distal ileum causing obstruction initially flagged as gallstone ileus. No gallstones or pneumobilia were identified although some intrahepatic duct dilatation was noted. An emergency laparotomy was conducted, where the radiological findings were reinforced, and the calculus was extracted via enterotomy. There were no abnormal communications between gallbladder and intestinal tract. The small bowel traced from duodenojejunal flexure to terminal ileum did not reveal any further calculi or diverticula. FTIR spectrum analysis of the extracted specimen indicated similarities to enterolith. Retrospective analysis of radiological images revealed a possible duodenal diverticulum. The case highlights the diagnostic conundrum and therapeutic challenges of small bowel diverticular enterolith.

An unusual case of DJ bending obstruction in adult men

Well known as incomplete rotation also refers to a rotation of 270 degrees around superior mesenteric vessels. It can lead to chronic and acute disease presentations. It is an unusual case of 44-year-old male diagnosed with Gut malrotation with Duodenojejunal Flexure obstruction.

Acute midgut volvulus in a septuagenarian with secondary jejunoileal diverticulitis and undiagnosed congenital malrotation: an unusual presentation

A 79-year-old male presented with abdominal pain, incidental umbilical hernia and acute midgut volvulus that was not detected until surgical exploration. When he presented to hospital, computed tomography (CT) findings indicated perforated jejunoileal diverticulitis; however, in the operating room clockwise volvulization of the jejunum and ileum, secondarily inflamed jejunoileal diverticula, incomplete malrotation (right-sided duodenojejunal flexure), right retroperitoneal adhesions (Ladd’s bands) and numerous other congenital adhesive bands were found. A modified Ladd’s procedure and umbilical hernia repair were completed including detorsion, division of Ladd’s bands with medialization of the cecum and lysis of other congenital adhesions without appendectomy. The patient recovered to baseline function by 3 weeks postoperatively. Acute midgut volvulus is a life-threatening surgical emergency that is exceptionally rare in the elderly. CT is relatively insensitive, so misdiagnosis is common. A high index of suspicion is required, especially in patients with a history of congenital gastrointestinal abnormalities. Prompt surgical exploration for correction and prevention is crucial.

Mesentery — a ‘New’ organ

The mesentery is the organ in which all abdominal digestive organs develop, and which maintains these in systemic continuity in adulthood. Interest in the mesentery was rekindled by advancements of Heald and Hohenberger in colorectal surgery. Conventional descriptions hold there are multiple mesenteries centrally connected to the posterior midline. Recent advances first demonstrated that, distal to the duodenojejunal flexure, the mesentery is a continuous collection of tissues. This observation explained how the small and large intestines are centrally connected, and the anatomy of the associated peritoneal landscape. In turn it prompted recategorisation of the mesentery as an organ. Subsequent work demonstrated the mesentery remains continuous throughout development, and that abdominal digestive organs (i.e. liver, spleen, intestine and pancreas) develop either on, or in it. This relationship is retained into adulthood when abdominal digestive organs are directly connected to the mesentery (i.e. they are ‘mesenteric' in embryological origin and anatomical position). Recognition of mesenteric continuity identified the mesenteric model of abdominal anatomy according to which all abdominal abdomino-pelvic organs are organised into either a mesenteric or a non-mesenteric domain. This model explains the positional anatomy of all abdominal digestive organs, and associated vasculature. Moreover, it explains the peritoneal landscape and enables differentiation of peritoneum from the mesentery. Increased scientific focus on the mesentery has identified multiple vital or specialised functions. These vary across time and in anatomical location. The following review demonstrates how recent advances related to the mesentery are re-orientating the study of human biology in general and, by extension, clinical practice.

Synchronous rectal prolapse and midgut volvulus presenting as complete small bowel gangrene

<b>Introduction:</b> Adult midgut malrotation is very rare. The presentation in adults is mostly subtle; the diagnosis is often made on imaging. <br><b>Case report:</b> A 32-year-old man presented with a 3-day history of an irreducible painful mass protruding per rectum, followed by abdominal pain and constipation. The patient was febrile and toxic, with marked signs of peritonitis and complete fullthickness irreducible rectal prolapse. Abdominal radiographs showed multiple air-fluid levels. A diagnosis of irreducible rectal prolapse with intestinal obstruction was made. Laparotomy revealed complete small bowel gangrene, abnormal rotation of the small bowel 180° around the mesenteric root, hypermobile duodenojejunal flexure and ileocaecal junction and an abnormally mobile caecum lying in the central abdomen. Abnormal mobility of the sigmoid colon with a large mesocolon, and a large irreducible rectosigmoid intussusception, was also noted. Our patient is probably the first case in literature, which may prompt awareness of simultaneously-occurring disorders of fixation, and preventive steps.

Early outcomes of tapering jejunoplasty by antimesenteric seromuscular stripping and mucosal inversion for proximal jejunal atresia

Background High jejunal atresia is associated with significant dilatation of the proximal segment. This poses two problems: (a) calibre discrepancy with the distal unused segment and (b) hypomotility causing stasis. Tapering jejunoplasty/enteroplasty could offer a practical solution in selected cases, leading to early establishment of feeds. This work aims to evaluate the outcome of tapering jejunoplasty including its effect on establishing enteral feeding in neonates with proximal jejunal atresia. Results Twenty-two neonates with jejunal atresia (types I, II and IIIa) were reviewed. Cases with multiple atresia, apple-peel variant and meconium ileus were excluded. The included cases fell retrospectively into two groups: group A (13 cases)—very proximal atresia and significant dilatation and group B (9 cases)—mid/distal jejunal atresia. For group A, we excised only the distal tip of the dilated bowel and stripped a seromuscular triangle up to the duodenojejunal flexure and inverted the mucosa along the antimesenteric border, followed by an end-to-oblique anastomosis. For group B, we performed a standard excision of a short proximal segment and an end-to-oblique anastomosis. There was no significant difference in the gestation age or birth weight between both groups. The mean operative time was 90 min for group A and 60 min for group B. The duration until full enteral feeds became tolerated, and parenteral nutrition was weaned accordingly was shorter in group A (mean 10.8 days) as compared to group B (mean 14.5 days), p = 0.045. Conclusion Tapering jejunoplasty by seromuscular stripping and mucosal inversion facilitates early establishment of feeds in proximal jejunal atresia.

An intraluminal jejunal gastrointestinal stromal tumor near DJ flexure with gastrointestinal bleed: a rare case report

Gastrointestinal stromal tumours (GISTs) are mesenchymal tumors arising in the gastrointestinal tract (GIT). In GIT, the most common site of presentation is stomach followed by small intestine, colon, rectum and oesophagus. Here we report a rare case of intraluminal jejunal GIST with history of pain abdomen, occasional vomiting and GI bleed. Patient was taken up for exploratory laparotomy. Intraoperative findings revealed a hard-nodular growth in antimesenteric border of jejunum, 5 cm distal to duodenojejunal flexure (DJ) partially obstructing the lumen. Anastomosis was quite difficult due to presence of growth near DJ flexure and chances of leak were high. The patient had an uneventful postoperative course and doing well after 1 year of follow up with no recurrence.