MECKELS DIVERTICULUM |
Meckel's diverticulum is a common congenital anomaly of the gastrointestinal tract occurring in approximately 2-3% of the population (1).
It develops at the fifth week of life from the vestigial remnant of the omphalomesenteric duct or yolk stalk of the embryo.
It is located arising from the distal ileum as a 1-12 cm pouch protruding from the wall.
It usually contains all layers of the bowel but may conatin
heterotopic tissue within it in 50% of cases (gastric
or pancreatic tissue0.
Asymptomatic diverticuli are usually found
incidentally.
Giant Meckel's diverticuli
occur in less than 0.5% of all omphalomesenteric duct
remnants.
Features suggesting that they are at risk for complications are:
ULTRASOUND |
Scan at 26 weeks of gestation Cystic mass in
mid-abdomen and right lower quadrant (arising from the pelvis and extending
into the right upper quadrant of the fetus). No connection
to bowel or stomach. No connection
to gallbladder or hepatobiliary system. Mass is
separate from the urinary bladder Avascular on color doppler |
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DIFFERENTIAL DIAGNOSIS |
REFERENCES |