Question:
Most common site of urethral carcinoma in men is:
Most common site of urethral carcinoma in men is:
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Think of the segment where strictures and chronic inflammation cluster.
Updated On: Jun 24, 2026
- Bulbomembranous urethra
- Penile urethra
- Prostatic urethra
- Fossa navicularis
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The Correct Option is A
Solution and Explanation
Step 1: Male urethral carcinoma is rare. It is divided by site into anterior (penile and bulbomembranous) and posterior (prostatic) urethra.
Step 2: By far the most common site is the bulbomembranous urethra, which accounts for roughly half of all cases. The penile urethra is next, and prostatic urethra is least common.
Step 3: The dominant tumour type at the bulbomembranous and penile urethra is squamous cell carcinoma, linked to chronic inflammation and stricture. Site matters because more proximal (bulbomembranous) tumours present late and carry a worse prognosis.
Step 4: Penile urethra (option B) is a frequent but second-ranked site. Prostatic urethra (option C) is uncommon and tends to be urothelial. Fossa navicularis (option D) is a distal anterior site that is not the most common.
Conclusion: The correct answer is A. Bulbomembranous urethra.
Step 2: By far the most common site is the bulbomembranous urethra, which accounts for roughly half of all cases. The penile urethra is next, and prostatic urethra is least common.
Step 3: The dominant tumour type at the bulbomembranous and penile urethra is squamous cell carcinoma, linked to chronic inflammation and stricture. Site matters because more proximal (bulbomembranous) tumours present late and carry a worse prognosis.
Step 4: Penile urethra (option B) is a frequent but second-ranked site. Prostatic urethra (option C) is uncommon and tends to be urothelial. Fossa navicularis (option D) is a distal anterior site that is not the most common.
Conclusion: The correct answer is A. Bulbomembranous urethra.
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