Meckel's diverticulum: Difference between revisions

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==Diagnosis==
==Diagnosis==
A [[technetium-99m]] (99mTc) pertechnetate scan is the investigation of choice to diagnose Meckel's diverticula. This scan detects [[gastric mucosa]]; since approximately 50% of symptomatic Meckel's diverticula have ectopic gastric ([[stomach]]) cells contained within them, this is displayed as a spot on the scan distant from the stomach itself. Patients with these misplaced gastric cells may experience peptic ulcers as a consequence. Other tests such as [[colonoscopy]] and screenings for [[bleeding disorder]]s should be performed, and [[angiography]] can assist in determining the location and severity of bleeding.
'''Positive Technetium-99m pertechnetate scan'''
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===Imaging Findings===
===Imaging Findings===

Revision as of 20:02, 27 March 2013

Meckel's diverticulum
Meckel's diverticulum

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Diagnosis

Imaging Findings

  • Meckel diverticulum is identified as a saccular, blind-ending structure located on the antimesenteric border of the ileum.
  • Meckel diverticulum is usually found in the right lower quadrant and pelvic region.
  • The junction of the diverticulum with the ileum may show a mucosal triangular plateau or triradiate fold pattern (represents the site of omphalomesenteric duct attachment to the ileum).
  • Filling defects within the diverticulum may represent enteroliths, fecoliths, or foreign bodies.
  • Technetium-99m pertechnetate scintigraphy is the modality of choice for evaluating pediatric patients with gastrointestinal hemorrhage and a suspected Meckel diverticulum.
  • A Meckel diverticulum containing gastric mucosa will manifest as a small rounded area of increased activity in the right lower quadrant.
  • Normal activity will simultaneously appear in the stomach.

Treatment

Treatment is surgical, consisting of a resection of the affected portion of the bowel.


References


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