"Swiss cheese" nephrogram on IVP is a feature of :: (A) Acute ureteral obstruction, (B) Severe hydronephrosis, (C) Polycystic Kidney Disease, (D) Medullary cystic disease of kidney
Answer is C. In ADPKD, 'Swiss cheese'nephrogram is due to the presence of innumerable lucent cysts of various sizes throughout the kidneys.