Pseudokidney sign

The pseudokidney of intussusception is an ultrasound finding in some cases of intestinal intussusception. It refers to the longitudinal ultrasound appearance of the intussuscepted segment of bowel which mimics a kidney.

The fat-containing mesentery which is dragged into the intussusception, containing vessels, is reminiscent of the renal hilum, with the renal parenchyma formed by the edematous bowel.

See also

Other signs useful in identifying intussusception include:

• target sign (doughnut sign)
• crescent in a doughnut sign