Acute renal failure RIGHT KIDNEY: Unremarkable echogenicity without mass, stone, or hydronephrosis. Right kidney 14.3 cm in lengthLEFT KIDNEY: Left kidney parenchyma markedly atrophic and associated with massive cystic structure presumably representing severe long-standing hydronephrosis. This finding is unchanged from the prior CT.OTHER: Bladder nondistended
Markedly atrophic left renal parenchyma associated with massive cystic structure presumably representing severe long-standing hydronephrosis with secondary parenchymal atrophy; finding unchanged from prior CT. Unremarkable right kidney.