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: Surgery
Cobra head deformity is seen in 
Select and explain. 
A. Ureterocele, B. Ureteric fistula, C. Retrocaval ureter, D. Urethral stricture
A: Ureterocele
Answer: A: Ureterocele 
Explanation: Ureterocoele due to distal ureter dilation looks like cobra head.