Faces of Defects in the Pelvis Neoplasm TCC Filling Defect in the Right Renal Pelvis – CTCT scan shows a 7mm filling defect on the anterior aspect of the right extrarenal pelvis . This was subsequently shown to be a transitional cell carcinomaAshley Davidoff MD TheCommonVein.net 135408 Filling Defect in the Left Renal Pelvis and Left UreterRetrograde study with injection of contrast into the left collecting system shows multilobulated filling defects in the dilated renal pelvis as well as filling defects in the proximal and mid ureter. The diagnosis was consistent with multicentric transitional cell carcinomaAshley Davidoff MD TheCommonVein.netKey words kidney filling defect renal pelvis multicentric transitional cell carcinoma TCCAshley Davidoff MD TheCommonVein.net 06109 Filling Defect – Metabolic Stone Antegrade Pyelogram Filling Defects in the Right Renal Pelvis37year-old male presents with back pain Antegrade pyelogram shows 2 filling defects in the renal pelvis with the larger occupying almost the entire downstream pelvis. There is mild hydronephrosis. Contrast is seen in the ureterAshley Davidoff MD TheCommonVein.net 135460 Coronal CT – Kidney Stones37year-old male presents with back pain Non contrast CT shows 2 calcifications. The larger stone is in the renal pelvis and the smaller in a lower pole calyx.Ashley Davidoff MD TheCommonVein.net 135461