Gibbons M D, Duckett J W
J Pediatr Surg. 1979 Aug;14(4):420-2. doi: 10.1016/s0022-3468(79)80004-4.
A case of perirenal neuroblastoma causing intrarenal obstruction of the pelvis of the kidney presented as a small hydronephrosis at 3 days of age. The tumor grew rapidly over the next 48 hr, diagnosis was confirmed by ultrasonography, and the mass was removed surgically.