Pseudokidney Sign

A term referring to the ultrasonographic appearance of a circumferentially thickened bowel wall which resembles the renal cortex. The dilemma is solved with a CT scan, in which the GI tract demonstrates obvious thickening, caused by primary colon cancer, inflammatory bowel disease, or intussusception—which is also known as the target or bull’s-eye sign
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The ultrasound revealed a targetoid appearance (Figure 1) in the bowel and a pseudokidney sign (Figure 2) consistent with intussusception.
Intussusception: Indications for ultrasonography and an explanation of the doughnut and pseudokidney signs.