This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urinary tract, Subject name: Pathology
Most common type of bladder cancer is 
Select and explain. 
A. Squamous cell carcinoma, B. Urothelial carcinoma, C. Adenocarcinoma, D. Carcinoid
B: Urothelial carcinoma
Answer: B: Urothelial carcinoma 
Explanation: Types of bladder cancers*Epithelial tumours: (95%)*Urothelial ( Transitional ) carcinomas- Most common*Squamous cell carcinoma*Adenocarcinoma Rare types*Small cell carcinoma*Mesenchymal tumours: (5%)*Sarcomas