Category Pediatric Imaging

Vesicoureteral Reflux

KEY FACTS Terminology Retrograde flow of urine from bladder toward 1 or both kidneys Imaging International Reflux Study Committee grading system of vesicoureteral reflux (VUR) I: Reflux into ureter but not reaching renal pelvis II: Reflux reaching pelvis without blunting…

Ureteropelvic Junction Obstruction

KEY FACTS Imaging Marked pelvocaliectasis that ends abruptly at ureteropelvic junction (UPJ) with normal caliber ureter downstream Dilated calyces relatively uniform in size & distribution; all connect centrally to disproportionately dilated pelvis Thinned but otherwise intact renal parenchyma Severity of…