Newborn female with a multicystic dysplastic kidney being investigated for vesicoureteral reflux

VCUG showing a vaginogram — Scout image from a voiding cystourethogram exam (above) shows a urinary catheter looped within the pelvis. AP image (below left) obtained after the introduction of contrast through the catheter shows filling of a structure that does not conform to the expected contour of the bladder and whose inferior aspect lies very low in the pelvis. Lateral image (below right) shows a filling defect on the superior aspect of the structure which represents the cervix projecting into a contrast-filled vagina.

The diagnosis was inadvertent performance of a vaginogram in a patient with possible vesicoureteral reflux.