This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Surgery
False statement about retroperitoneal fibrosis 
Select and explain. 
A. Ureter is most commonly involved, B. More common in female, C. Primary idiopathic form is called ormond's disease, D. Corticosteroids are mainstay of treatment
B: More common in female
Answer: B: More common in female 
Explanation: Ans. (b) More common in femalesRef: Bailey and Love 26th edition Page 985* MC organ involved is ureter* Ormond disease- Primary Retroperitoneal fibrosis* Main stay of treatment is Steroids and Bilateral stenting of ureter* There is no sex predilection in Retroperitoneal fibrosis.