This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Urethra & Penis), Subject name: Surgery
Penile carcinoma upto urethra stage - 
Select and explain. 
A. T1, B. T3, C. T4, D. T2
B: T3
Answer: B: T3 
Explanation: Ans. is 'b' i.e., T3 T- Primary tumorTx - Cannot be assessedTo - No evidence of primaryTis - In situ CATa - Noninvasive verrucous CAT1 - Subepithelial connective tissue invasionT2 - Corpus cavemosum or spongiosum invasionT3 - Invades urethra or prostateT4 - Involves other adjectent structures