This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
Spider leg deformity of calyces on 1VP is seen in: 
Select and explain. 
A. Hypernephroma, B. Hydronephroses, C. Wilm's tumor, D. Pyelonephritis
A: Hypernephroma
Answer: A: Hypernephroma 
Explanation: Ans. Hypernephroma