Intravenous pyelography is considered the best initial test.
Horseshoe kidney dignostic study of choice
Renal oncocytoma diagnostic study of choice
Horseshoe kidney other imaging findings
Wilms' tumor diagnostic study of choice
Renal oncocytoma other diagnostic studies
Adrenal insufficiency diagnostic study of choice
Hydronephrosis diagnostic study of choice
Renal oncocytoma other imaging findings