The symptoms of a meckels diverticulum include any of the following. It can cause complications in the form of ulceration, haemorrhage, intussusception, intestinal obstruction, perforation and, very rarely, vesicodiverticular fistulae. Jul 16, 2014 meckel s diverticulum is a common incidental finding at laparotomy. Learn about meckels diverticulum, find a doctor, complications, outcomes, recovery and followup care for meckels diverticulum. Although originally described by fabricius hildanus in 1598, it is named after johann friedrich meckel, who established. How boston children s hospital approaches meckels diverticulum scans. Meckels diverticulum a meckels diverticulum is a common congenital pouch on the wall of the small bowel that is formed while in the womb. Later on during 1808 and 1820, johann friedrich meckel demonstrated its origin as a failure of vitelline duct to obliterate during fetal development. The point of attachment of a meckel s diverticulum to the bowel varies.
Complications are most likely to occur when the diverticulum contains heterotypic tissue. Meckels diverticulum definition of meckels diverticulum. A meckels diverticulum, a true congenital diverticulum, is a small bulge in the small intestine present at birth. It results from a failure of complete obliteration of the omphalomesenteric duct. It is a vestigial remnant of the omphalomesenteric duct also called the vitelline duct or yolk stalk, and is the most frequent malformation of the gastrointestinal tract. Jan 18, 2014 meckel diverticulum also referred to as meckel s diverticulum is the most common congenital abnormality of the small intestine. The administered activity should be calculated according to the recommendation of the 2012 north american consensus. This is most often gastric, but may also be pancreatic, jejunal or colonic mucosa. If you have a diverticulum, the fluid will gather around the. Meckel s diverticulum is the most common congenital anomaly of the gastrointestinal tract. Meckel diverticulum is a small pouch in the wall of the intestine.
It is the most common malformation of the gastrointestinal tract and is present in approximately 2% of the population, with males more frequently experiencing symptoms. A meckels diverticulum scan is a nuclear medicine test that detects the abnormallylocated gastric mucosa. Gastric mucosa is the mucous membrane layer of the stomach. There is no way to prevent a meckel s diverticulum from forming during fetal development. A meckels diverticulum may require radiology studies to diagnose and is likely to require an operation to resolve. This blind segment or small pouch is about 36 cm 2 inch long and may have a greater lumen diameter than that of the ileum. A meckels scan uses a special camera to look at your childs bowels intestines to check for a meckels diverticulum. We collected information of patients with meckels diverticulum diagnosed at mackay memorial hospital in taiwan from.
Large gallstone impaction at a meckels diverticulum causing. Generally, a meckel diverticulum ranges from 1 to 12 cm in length and is found 4590 cm proximal to the ileocecal valve. It is generally about 2 inches long and located 2 feet proximal to the ileocecal valve. Based on a us population of 200 million people and a 2% incidence, there are 4 million meckels diverticula present waiting to cause symptoms. Learn about the symptoms of this condition and how its diagnosed and treated. If doctors think bleeding from the rectum is caused by a meckel diverticulum, they do an imaging study called a meckel scan.
True diverticulum pancreatic rests 50% heterotopic gastric mucosa failure of vitelline duct to obliterate by wk6 of dev variationsdiverticulumenteric cystpatent intestinovitelline duct fecal material in umbilicus meckels diverticulum clinical features. Meckels diverticulum scintigraphy the indication for a meckels scintiscan is to localize ectopic gastric mucosa in a meckels diverticulum as the source of unexplained gastrointestinal bleeding. Consider in patients with gastrointestinal bleeding and known abdominal aortic aneurysms or aortic grafts. Meckels diverticulum is a malformation arising from the incomplete obliteration of the omphalomesenteric duct, and has an incidence of 2% in man, being considered the most frequent gas. Meckel s diverticulum a meckel s diverticulum is a common congenital pouch on the wall of the small bowel that is formed while in the womb. Meckels diverticulum is a cause of significant morbidity and mortality. A radioactive substance called technetium, which is preferentially absorbed by stomach tissue, is injected into the bloodstream through an intravenous iv line.
This test is an imaging procedure used to detect meckels diverticulum, which is an abnormal outpouching in the small intestine. Most 75% meckels diverticula are found within 100 cm of the ileocecal. Meckel s diverticulum is an abnormal pouch in the intestine that s present from birth. Meckels diverticulum was initially described by fabricius hildanus in 1598. Meckel s diverticulum was initially described by fabricius hildanus in 1598. Meckel s diverticulum is the most common congenital malformation of gastrointestinal tract. A meckels scan is used to determine if your symptoms are being caused by meckels diverticulum. This substance can be seen on xrays and indicates areas where acidsecreting stomach tissue exists, including that seen in the meckel s diverticulum. It results from incomplete obliteration of the vitelline duct leading to the formation of a true diverticulum of the small intestine. A meckel diverticulum is a vestigial remnant of the omphalomesenteric vitellointestinal duct.
Most people with a meckel s diverticulum do not even know they have it, and no treatment is required. Learn about the symptoms of this condition and how it s diagnosed and treated. Before scheduling your test, please tell your provider if you are. Its near where the small and large intestines meet. Histamine h2 blockers block secretion from the cells and increase gastric mucosa uptake of the radiopharmaceutical. Meckel s diverticulum is a congenital present at birth outpouching or bulge in the lower part of the small intestine.
Meckel diverticulum also referred to as meckels diverticulum is the most common congenital abnormality of the small intestine. Arising from failure of the omphalomesenteric duct to close properly, md can. A meckel s diverticulum, a true congenital diverticulum, is a slight bulge in the small intestine present at birth and a vestigial remnant of the omphalomesenteric duct also called the vitelline duct or yolk stalk. Meckel, a german anatomist who first described the structure. Meckels scan pretreatment protocol pretreatment with histamine h2 blockers is reported to enhance the sensitivity of the meckels scan snm procedure guidelines, june 2002. Meckels diverticulum is the most common congenital defect of the gastrointestinal tract. The radiopharmaceutical injection used for imaging accumulates in the gastric mucosa and will localize or show a mechels. Meckel diverticulum knowledge for medical students and. A subsequent meckels scan figure b with single photon emission computed tomography and preadministration of cimetidine demonstrated activity in the right lower quadrant, likely in the ileum, which indicated a meckels diverticulum md. In approximately 2 percent of the population, this remnant remains into adulthood and they have the propensity to. Snmmi and eanm practice guideline for meckel diverticulum. This condition is the most common birth defect of the digestive system. A nuclear medicine meckels scan is a diagnostic exam used to detect or rule out a meckel.
Meckel diverticulum is a congenital intestinal diverticulum due to fibrous degeneration of the umbilical end of the omphalomesenteric vitelline duct that occurs around the distal ileum. There is probably no familial predisposition for meckel s diverticulum, although a few cases of occurrence within the same family have been reported. We are reporting a successful laparoscopic resection of a perforated meckels diverticulum md causing localized peritonitis due to an impacted gallstone. The rule of 2s is a useful mnemonic for the features of meckel diverticulum, although the figures do have a broad range. Meckels scan pretreatment protocol unitypoint health. Case reports meckels diverticulum found on virtual capsule.
Rule of 2s in meckel diverticulum radiology reference. It occurs in about 2% to 3% of the general population. As a congenital anomaly, it is a true diverticulum that includes all three coats of the small intestine. The diverticulum may contain stomach or pancreatic tissue.
See also the snmmi guideline for the use of radiopharmaceuticals. By browsing our website, you accept the use of mecksl. Md is a small benign pouch on the wall of the small intestine that is present in. This duct arises from fetal yolk sack and connects umbilicus with fetal intestine. May 15, 2019 a meckel diverticulum is a vestigial remnant of the omphalomesenteric vitellointestinal duct. Rule of 2s occur in 2% of the population are 2 inches 5 cm long are 2 feet 60 cm from the ileocecal valve 23 have e. Exceptionally, a tumor can develop in meckels diverticulum in children, particularly burkitts lymphoma. Definition meckel s diverticulum is a congenital pouch diverticulum approximately two inches in length and located at the lower distal end of the small intestine.
Meckel s diverticulum is the most common congenital malformation of the gastrointestinal tract. The vast majority of those with meckel s diverticulum are asymptomatic. Meckel s diverticulum occurs in approximately 1%3% of the population with a maletofemale ratio of 2. Though 2% to 3% of the population gets meckel s diverticulum, it causes symptoms in only a small number of those people. If it causes symptoms, meckel s diverticulum can be repaired with surgery. The purpose of this study was to investigate the clinical features of meckels diverticula at different ages, genders, and pathology in order to serve as a reminder to clinicians when evaluating potential cases and to help obtain an early diagnosis. Based on a us population of 200 million people and a 2% incidence, there are 4 million meckel s diverticula present waiting to cause symptoms. Meckels diverticulum is an abnormality in the small intestine that is present at birth. The medical files of adult patients diagnosed with meckels diverticulum based on imaging studies in the department of ionizing radiation, computed tomography subsection of the hospital and findings after surgery in the general surgery department of. Meckels diverticulum is a remnant of the omphalomesenteric or vitelline duct. Meckels diverticulum scan boston childrens hospital. Large gallstone impaction at a meckels diverticulum. Definition meckels diverticulum is a congenital pouch diverticulum approximately two inches in length and located at the lower distal end of the small intestine. Feb 15, 2000 meckel s diverticulum is a true intestinal diverticulum that results from the failure of the vitelline duct to obliterate during the fifth week of fetal development.
The point of attachment of a meckels diverticulum to the bowel varies. Feb 27, 2019 meckels diverticulum is a common congenital condition characterized by the presence of a small pouch in the intestinal wall, at the junction where the small and large intestines meet. Learn about meckel s diverticulum, find a doctor, complications, outcomes, recovery and followup care for meckel s diverticulum. It is the most common congenital anomaly of small intestine.
Though 2% to 3% of the population gets meckels diverticulum, it causes symptoms in only a small number of those people. It is considered the most common structural congenital anomaly of the gastrointestinal tract. Although a meckels diverticulum exists at birth, doctors do not test for it. Meckels diverticulum is the most common congenital malformation of gastrointestinal tract. Meckels diverticula are uncommon and often clinically silent, particularly in the adult. Meckels diverticulum information mount sinai new york. In this study, a small amount of a harmless radioactive substance is given by vein intravenously. It is seen in 2% of the population, and it is caused by failure of the omphalomesenteric duct to regress. Meckels diverticulum is located in the distal ileum, usually within 60100 cm 2 feet of the ileocecal valve. The substance is picked up by cells in the diverticulum, which can then be seen using a radiationsensing camera. Jul 07, 2014 meckel s diverticulum is the most prevalent congenital anomaly of the gi tract 2% of the general population 2% prevalence, 2. Generally, a meckel diverticulum ranges from 1 to 12 cm in. The mucosal lining of the diverticulum may be either native ileal mucosa. It can cause complications in the form of ulceration, haemorrhage, intussusception, intestinal obstruction, perforation and, very rarely, vesicodiverticular fistulae and tumours.
Contact your doctor if you or your child develops symptoms. Meckels diverticulum is the most common congenital anomaly of the gastrointestinal tract. The radiopharmaceutical injection used for imaging accumulates in. The incidence of complications with a meckel diverticulum is reported to wide range between 4% and 40% of patients. Meckels diverticulum is a common congenital condition characterized by the presence of a small pouch in the intestinal wall, at the junction where the small and large intestines meet. Meckel s diverticulum is a cause of significant morbidity and mortality. Meckel diverticulum merck manuals professional edition. Having its own blood supply, meckels diverticulum is susceptible to obstruction or infection. It is seen in 2% of the general population and is more common in males. The medical files of adult patients diagnosed with meckels diverticulum based on imaging studies in the department of ionizing radiation, computed tomography subsection of the hospital and findings after surgery in the general surgery department of the hospital, confirmed. It is caused by incomplete obliteration of the vitelline duct and consists of a congenital sacculation of the antimesenteric border of the ileum. This is an abnormal tissue found in the lower part of the bowel that may cause blockage or bleeding. A meckel diverticulum is the most common congenital anomaly of the gastrointestinal tract and is caused by an incomplete obliteration of the omphalomesenteric duct.
A meckels diverticulum is a small pouch about 2 inches long that develops near the junction of the small and large intestines. Mar 04, 2020 a meckel s diverticulum remains for a lifetime unless it is removed surgically. Meckel s diverticulum is the most common congenital defect of the gastrointestinal tract. Meckel s diverticulum is an abnormal pouch in the intestine thats present from birth.
This substance can be seen on xrays and indicates areas where acidsecreting stomach tissue exists, including that seen in the meckels diverticulum. Description the diverticulum is most easily described as a blind. Meckels diverticulum occurs in approximately 1%3% of the population with a maletofemale ratio of 2. It is not hereditary, it is formed from a remnant of structures within the fetal digestive tract that were not. The meckels scintiscan should be used when the patient is not actively. Meckels diverticulum found on virtual capsule endoscopy october 8, 2015 case reports, octoberdecember 2015 keywords meckels diverticulum amar mandalia, md 1, benjamin hinrichs, md 2, tanvi dhere, md 3 af. Meckels diverticulum occurs due to an abnormality in early fetal development. Meckel diverticulum is a true diverticulum and is the most common congenital anomaly of the gi tract, occurring in about 2% of people. Bleeding meckels diverticula usually occur in young children. Meckel s diverticulum is a malformation arising from the incomplete obliteration of the omphalomesenteric duct, and has an incidence of 2% in man, being considered the most frequent gas. It is common for a meckels diverticulum to have the same gastric mucosa as the lining of the stomach. Most 75% meckel s diverticula are found within 100 cm of the ileocecal.
537 1076 26 1146 304 435 318 475 1410 1496 761 246 44 57 575 1281 1242 682 1446 1442 1222 125 447 397 144 311 612 312 1282 304 679 365 152 1262 1215 44 607 508 1463 401 669