Rim Sign on Contrast Studies of kidney is seen in?: (A) Chronic Hydronephrosis, (B) Renal Coical Necrosis, (C) Renal Papillary Necrosis, (D) RCC
Answer is A. RIM SIGN-Chronic Hydronephrosis REVERSE RIM SIGN-Renal Coical Necrosis * RIM sign indicates the markedly thinned out atrophic renal parenchyma surrounding the dilated pelvicalyceal system in Chronic Hydronephrosis