What is the most common benign extratesticular tumor?

What is the most common benign extratesticular tumor?

• A. Lipoma
• B. Adenomatoid
• C. Hemangioma
• D. Spermatic granuloma

Answer: (B)

The most common benign extratesticular tumor is an adenomatoid tumor of the epididymis. This benign mesothelial neoplasm accounts for the majority of extratesticular lesions, typically arising in the epididymis as a small, well-circumscribed, solid mass. On ultrasound it usually appears as a tiny, well-defined lesion near the epididymis with little to no internal vascularity on Doppler. This profile—epididymal location, small size, well-defined border, and minimal vascularity—makes it the favored diagnosis for a benign extratesticular mass. Other options are much less common in this setting: lipomas are fatty and can be echogenic; hemangiomas are rare vascular tumors; spermatic granulomas are inflammatory/reactive, not true tumors and often relate to prior procedures.

The most common benign extratesticular tumor is an adenomatoid tumor of the epididymis. This benign mesothelial neoplasm accounts for the majority of extratesticular lesions, typically arising in the epididymis as a small, well-circumscribed, solid mass. On ultrasound it usually appears as a tiny, well-defined lesion near the epididymis with little to no internal vascularity on Doppler. This profile—epididymal location, small size, well-defined border, and minimal vascularity—makes it the favored diagnosis for a benign extratesticular mass. Other options are much less common in this setting: lipomas are fatty and can be echogenic; hemangiomas are rare vascular tumors; spermatic granulomas are inflammatory/reactive, not true tumors and often relate to prior procedures.