Volvulus – Midgut, barium swallow Midgut volvulus is a result of a rotational anomaly of the gastrointestinal tract. The small bowel mesentery has twisted at the root with a vascular twirl of the SMA/SMV. This then sets up a potential for vascular compromise....
Small Bowel Obstruction – String of Pearls (AXR & CT) The “string of pearls” sign in the images above is caused by air trapped at corners of valvulae conniventes. This is almost always seen in obstructed fluid filled loops of small...
Upright abdominal radiograph showing dilated loops of small bowel (>3 cm; left) and differential air-fluid levels (within the same loop; right). [Courtesy of Dr. N. Jaffer]
Enteroclysis – Study of the jejunum The jejunum has a feathery appearance due to the numerous folds, valvulae conniventes (plicae semi-circulares). [Courtesy of Dr. N. Jaffer]
Crohn’s Disease – Disappearing string sign Terminal ileal disease is a common finding in Crohn’s Disease. Please take notice of the thin luminal bowel enhancement proximal to the cecum on the left image. On the right image, an abrupt cutoff can be...
