This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Surgery
The posterior urethra is best visualized by ? 
Select and explain. 
A. Static cystogram, B. Retrograde urethrogram, C. Voiding cystogram, D. CT cystogram
C: Voiding cystogram
Answer: C: Voiding cystogram 
Explanation: Voiding cystourethrography is the best method to visualize posterior urethra. Remember, Urethra can be imaged radiographically in two ways. Anterograde techniques --> Best for visualization of posterior urethra. (This is done along with voiding cystourethrography or with voiding following excretory urography) Retrograde technique --> Best for examining the anterior (penile) urethra (Contrast is injected through tip of urethra). Ref: Sabiston 20th Ed. ; Schwaz 11th Ed.