Multidetector CT enteroclysis localized a Meckel’s diverticulum in a case of obscure GI bleeding - 16/08/11
| Commentary MD is the most common congenital anomaly of the GI tract (1%-3% of the population) and results from failure of the omphalomesenteric duct to become obliterated. MD arises from the antimesenteric border, contains all layers of the bowel wall, has its own mesentery, and derives its blood supply from a terminal branch of the superior mesenteric artery. Most MDs are located within 100 cm of the ileocecal valve and many contain ectopic mucosa. There is an association with Crohn’s disease. MDs usually manifest with painless, often hemodynamically significant, bleeding, usually from peptic ulceration within the MD, and stools typically are melenic in adults and currant jelly-like in children. Bleeding is more common in childhood, whereas in adults, intestinal obstruction is the more common complication. Diagnosis usually is by a technetium Tc 99m–pertechnetate scanning or surgical exploration and less commonly by barium enema or small-bowel series or angiography. Conceptually, MSCTA-enterography would seem to be a better test than capsule endoscopy to detect MD, whereas capsule endoscopy probably is superior to detect a site of bleeding. Tempus omnia revelat (time reveals all things). Lawrence J. Brandt, MD Associate Editor for Focal Points |
Vol 64 - N° 3
P. 441-442 - settembre 2006 Ritorno al numeroBenvenuto su EM|consulte, il riferimento dei professionisti della salute.
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