Meckel diverticulum


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ileal diverticulum

a remnant of the proximal part of the yolk stalk within the embryo that arises as a fingerlike diverticulum, 3-6 cm long, from the antimesenteric border of the ileum between 40 and 50 cm from the ileocecal junction; it may be attached to the umbilicus. If its mucosa includes gastric tissue, peptic ulceration and bleeding may result.
Synonym(s): Meckel diverticulum

Mec·kel di·ver·ti·cu·lum

(mek'el dī'vĕr-tik'yū-lŭm)
The remains of the yolk stalk of the embryo, which, when persisting abnormally as a blind sac or pouch in the adult, is located on the ileum a short distance above the cecum; it may be attached to the umbilicus and, if the lining includes gastric mucosa, peptic ulceration and bleeding can occur.
Synonym(s): ileal diverticulum.

Meckel,

Johann Friedrich, the elder, German anatomist and obstetrician, 1714-1774.
Meckel band - the portion of the anterior ligament of the malleus that extends from the base of the anterior process through the petrotympanic fissure, to attach to the spine of the sphenoid. Synonym(s): Meckel ligament
Meckel cave
Meckel cavity - Synonym(s): Meckel space
Meckel ganglion - a small parasympathetic ganglion in the upper part of the pterygopalatine fossa. Synonym(s): pterygopalatine ganglion
Meckel ligament - Synonym(s): Meckel band
Meckel space - the cleft in the meningeal layer of dura of the middle cranial fossa that encloses the roots of the trigeminal nerve and the trigeminal ganglion. Synonym(s): Meckel cavity; trigeminal cave
Meckel sphenopalatine ganglionectomy

Meckel,

Johann Friedrich, the younger, German anatomist and embryologist, 1781-1833.
Meckel cartilage - a temporary supporting structure in the embryonic mandible. Synonym(s): mandibular cartilage
Meckel diverticulum - the remains of the yolk stalk of the embryo.
Meckel-Gruber syndrome - a malformation syndrome. Synonym(s): dysencephalia splanchnocystica; Meckel syndrome
Meckel plane - a craniometric plane cutting the alveolar and the auricular points.
Meckel scan - use of technetium-99m pertechnetate in a scan of the gastric mucosa to detect ectopic gastric mucosa in Meckel diverticulum.
Meckel syndrome - Synonym(s): Meckel-Gruber syndrome
References in periodicals archive ?
Resection of the Meckel diverticulum with end-to-end anastomosis of small intestine was done.
Specimen consistent with diverticulitis of Meckel diverticulum and the wooden bark foreign body was found to be cinnamon [Figure 4].
The incidence of Meckel diverticulum is 1-2% in the population, more in young with slightly higher male preponderance, and its perforation is a result of diverticulitis, obstruction-stasis with bacterial infection, and ulceration of mucosa; though reports due to foreign body are rare.
(1) Known causes of intussusception in infants and children include lymphoma, lymphoid polyp, Meckel diverticulum, ectopic pancreas, acute appendicitis, leiomyoma, juvenile polyp, polyposis, enterogenous cyst, and duplication cyst.
For example, H pylori DNA has been found in hepatic bile (4 of 43 samples) using polymerase chain reaction, but by histochemical staining the organism was not found to actually colonize the bile duct epithelium.[2] Helicobacter pylori is also known to colonize heterotopic mucosa in various sites, including cases of Meckel diverticulum and heterotopic gastric mucosa in the rectum.[3]
Small bowel obstruction due to phytobezoar formation within Meckel diverticulum: CT findings.
Femoral hernia with strangulated Meckel diverticulum (Littre's hernia): case report and review of the literature.