The typical appearance of "spider leg" on excretory urography is seen in
Hydronephrosis
Polysystic kidney
Medullary sponge kidney
Renal cell carcinoma
REPEAT QUESTION polycystic kidney, an autosomal dominant disease, common in females; excretory urogram shows 'spider leg' pattern - elongated and compressed renal pelvis with narrowed and stretched calyces over the cysts. ( Reference: emedicine.medscape.com/aicle/983281-workup )
Urology