The typical appearance of "spider leg" on excretory urography is seen in
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 )
Hydronephrosis
Polysystic kidney
Medullary sponge kidney
Renal cell carcinoma
Urology