It may have a persistent connection to the umbilicus via a fibrous band, but most often it is free and isolated 4, 5. It can cause complications in the form of ulceration, haemorrhage, intussusception, intestinal obstruction, perforation and, very rarely, vesicodiverticular fistulae and tumours. Meckel s diverticulum occurs in approximately 1%3% of the population with a maletofemale ratio of 2. Meckel diverticulum merck manuals professional edition. This duct is typically obliterated by the 5th8th week of gestation. Meckels diverticulum is one of the most common congenital digestive system disorders congenital means that the disorder was present at birth. Meckel s diverticula are uncommon and often clinically silent, particularly in the adult. A 31yearold woman in week 15 of pregnancy complained of epigastric pain. The tip of the diverticulum is free in 75% of cases and is attached to the anterior abdominal wall or another structure in the remainder of cases. The lifetime risk of diverticulum complications including bleeding, obstruction and diverticulitis is approximately 4%. Ac case number 6, 16year old male with abdominal pain syndrome, cat scan of abdomen and pelvis showed free intraabdominal fluid and right pelvic. Meckel scan mekel, use of 99mtechnetium pertechnetate in a scan of the small bowel to detect ectopic gastric mucosa in a meckel diverticulum. The lining of md may consist entirely of intestinal mucosa, but often has ectopic mucosa. Meckel s diverticulum md is the most common gastrointestinal congenital malformation approximately 2% in the overall population.
Meckel diverticulum merck manuals consumer version. The differential diagnosis included enteric duplication. Bleeding from meckels diverticulum due to ectopic gastric mucosa is the most. Approximately 4% of patients are symptomatic with complications such as bleeding, intestinal obstruction, and inflammation, while axial torsion of meckels diverticulum is rare, particularly in pregnancy. Although originally described by fabricius hildanus in 1598, it is named after johann friedrich meckel, who established. Meckel diverticulum an overview sciencedirect topics. Meckels diverticulum is one of differential diagnoses of pain abdomen in children. Meckels diverticulum is the persistent proximal part of the vitellointestinal duct which normally disappears during intrauterine life. Meckels diverticulum information mount sinai new york.
Any mass is most often in the right upper abdomen, with its long axis cephalocaudal. Important point meckel diverticulum rule of two occur in 2% of poulation 2 inch long 2 feet from ileocecal valve in child younger than age2 2 type of tissue ectopic stomach or pancerase not attached to the abdominal wall 6. A small number of people have a meckel diverticulum. Lester md, phd, in manual of surgical pathology third edition, 2009. Meckels diverticulum is an abnormality in the small intestines present since birth. Ppt meckel powerpoint presentation free to view id. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect. In this report, we aimed to represent a case of intestinal perforation, caused by double meckels. Meckel diverticulum is a true diverticulum and is the most common congenital anomaly of the gi tract, occurring in about 2% of people.
Depending on the type of anomaly, patients may be completely asymptomatic or may present with bleeding, inflammation, obstruction, or umbilical drainage. Ppt meckels diverticulum powerpoint presentation free. The substance is picked up by cells in the diverticulum, which can then be seen using a radiationsensing camera. Gastric mucosa is the mucous membrane layer of the stomach.
Palpation of the abdomen usually reveals a slightly tender sausageshaped mass, sometimes illdefined. Meckel diverticulitis is the inflammation of meckel diverticulum, which is the most common congenital structural abnormality of the gastrointestinal tract 3. Ac case number 6, 16year old male with abdominal pain syndrome, cat scan of abdomen and pelvis showed free intraabdominal fluid and right pelvic tubular structure that led to. Meckel s diverticulum a congenital diverticulum in the ileum resulting from incomplete closure of the yolk sac diverticulum. We present one such complication, which is rare by occurrence, volvulus of meckel sdiverticulum causing intestinal obstruction and its management by assisted laparoscopy. Its near where the small and large intestines meet. However, inversion of the diverticu lum into the gut lumen may occur without producing any symptoms or complications 17.
Meckel s diverticulum is a small pouch in the wall of the lower small intestine. Meckel s diverticulum is an outpouching or bulge in the lower part of the small intestine. The pouch, or diverticulum, seems to be leftover tissue from th. Meckel s diverticulum is a remnant of the omphalomesenteric or vitelline duct, which connects the yolk sac to the midgut through the umbilical cord. Health, general abdomen health aspects surgery cholecystitis digestive system abnormalities care and treatment case studies diagnosis diverticulum gallstones gastrointestinal system abnormalities genetic disorders intestinal ischemia risk factors ischemia.
It is normally located on the antimesenteric border of the terminal ileum within 80100 cm of the ileocecal valve and is on average. Meckels diverticulum history and exam bmj best practice. A radioactive substance called technetium, which is preferentially absorbed by stomach tissue, is injected into the bloodstream through an intravenous iv line. Pdf intestinal intussusception due to meckels diverticulum. A systematic pubmedmedline database search using the terms meckel and meckels combined with diverticulum. It is caused by incomplete obliteration of the vitelline duct and consists of a congenital sacculation of the antimesenteric border of the ileum. A meckels diverticulum scan is a test used to look for the presence of the abnormal tissue. The mucosal lining of the diverticulum may be either native ileal mucosa. Intestinal intussusception due to meckel s diverticulum abstract intestinal intussusception is a common problem in the children, but in adults, its very unusual. It is generally about 2 inches long and located 2 feet proximal to the ileocecal valve.
Meckel scan definition of meckel scan by medical dictionary. A meckel s diverticulum scan is a nuclear medicine test that detects the abnormallylocated gastric mucosa. Meckel scan special instructions at the discretion of the referring clinician, patients may be pretreated with an h 2blocker or proton pump inhibitor. Meckel s diverticulitis occurs in 20% of patients who become symptomatic and is clinically indistinguishable from appendicitis. A meckel diverticulum is an embryologic abnormality that is part of a spectrum of anomalies known as yolk stalk or omphalomesenteric duct remnants see the images below. The lifetime risk of related complications is estimated at 4%. Meckels diverticulum is considered the most prevalent congenital anomaly of the gastrointestinal tract. It results from incomplete obliteration of the vitelline duct leading to the formation of a true diverticulum of the small intestine.
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 s diverticulum is an abnormal pouch in the intestine thats present from birth. If symptoms do occur, they typically appear before the age of two. It is caused by abnormally located stomach tissue and can lead to ulcers and bleeding later in life. It results from incomplete obliteration of the vitelline duct leading to the formation of a true diverticulum of the small intestine 1. 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.
Winner of the standing ovation award for best powerpoint templates from presentations magazine. 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. It can be cause of intestinal obstruction in children due to its complications. These include gastrointestinal bleeding, obstruction or diverticular inflammation. Learn about meckel s diverticulum, find a doctor, complications, outcomes, recovery and followup care for meckel s diverticulum. Learn about the symptoms of this condition and how its diagnosed and treated. Meckels diverticulum scan boston childrens hospital. The free diverticulum can act as a lead point for an ileocolic or ileoileal intussusception. Meckel diverticulum knowledge for medical students and. The pouch is a congenital present at birth abnormality that affects approximately 2% of the population. This condition is the most common birth defect of the digestive system.
Meckel diverticulum is the vestigial remnant of the omphalomesenteric duct and represents the most common congenital anomaly of the gastrointestinal tract, with an incidence of 1%3% in the general population. Meckels diverticulum is an ileal outpouching that occurs from the incomplete. Meckel diverticulum also referred to as meckel s diverticulum is the most common congenital abnormality of the small intestine. If it causes symptoms, meckel s diverticulum can be repaired with surgery. When a childs small intestine was developing, a small pouch formed consisting of tissue from elsewhere in the body. How boston childrens hospital approaches meckel s diverticulum scans. Meckel s diverticulum is a congenital present at birth outpouching or bulge in the lower part of the small intestine. Usually the pouch also known as meckels diverticulum is formed from tissue similar to that found in the pancreas or. Definition the most common congenital malformation of the small bowel, meckel s diverticulum md is present in 1% to 3% of the population. In this study, a small amount of a harmless radioactive substance is given by vein intravenously. A meckels diverticulum, a true congenital diverticulum, is a small bulge in the small intestine present at birth. If doctors think bleeding from the rectum is caused by a meckel diverticulum, they do an imaging study called a meckel scan. Meckel s diverticulum is an abnormality in the small intestine that is present at birth.
A meckel diverticulum is tissue left over from when the babys digestive tract was forming before birth. Meckels diverticulum is the most common congenital anomaly of the gastrointestinal tract. Properly performed 99mtcpertechnetate scintigraphy in the appropriate clinical setting is an effective method for the detection of meckel diverticulum containing functioning gastric mucosa, with overall sensitivity of 85%, specificity of 95%, and accuracy of 90%. Meckel scan mekel skan use of technetium99m pertechnetate in a scan of the gastric mucosa to detect ectopic gastric mucosa. This substance can be seen on xrays and indicates areas where acidsecreting stomach tissue exists, including that seen in the meckel s diverticulum. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Snmmi and eanm practice guideline for meckel diverticulum. A normal appendix was identified to the right of midline. The most common presenting symptom is painless rectal bleeding, followed by intestinal obstruction, volvulus and intussusception. Meckel s diverticulum synonyms, meckel s diverticulum pronunciation, meckel s diverticulum translation, english dictionary definition of meckel s diverticulum. It is seen in 2% of the general population and is more common in males. Meckel s diverticulum is an outpouching or bulge in. Meckel diverticulum definition of meckel diverticulum by. Meckel s diverticulum is the most common congenital malformation of gastrointestinal tract.
A meckel diverticulum is the most common congenital anomaly of the gastrointestinal tract and is caused by an incomplete obliteration of the omphalomesenteric duct. Despite this, it is an uncommon cause of acute abdomen and is often not correctly diagnosed preoperatively. If its mucosa includes gastric tissue, peptic ulceration and bleeding. Pdf meckels diverticulum is the most common congenital. Meckel s diverticulum is the most common congenital anomaly of the gastrointestinal tract. Ischemic volvulized meckels diverticulitis in a previously healthy boy. 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. Occasionally, meckel s diverticulitis may present with all the features of acute appendicitis. Meckel s diverticulum was named after johann friedrich meckel, who described its anatomy and embryology in 1809. Meckel diverticulum is a small pouch in the wall of the intestine. Meckels diverticulum scan nicklaus childrens hospital. There was surrounding fat stranding and free fluid. Meckels diverticulum symptoms, diagnosis and treatment. Axial torsion of meckels diverticulum causing acute.
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