Which structure is classically felt on the top and behind each testicle during palpation?

• A. Vas deferens
• B. Epididymis
• C. Spermatic cord
• D. Testicular artery

Answer: (B)

During a scrotal exam, the structure that is classically felt resting on the top and behind each testicle is the epididymis. The epididymis sits along the posterolateral surface of the testis, with the head at the upper pole and the body and tail extending downward along the posterior edge. It appears as a soft, coiled tubular structure that can be palpated separately from the testis.

In contrast, the vas deferens is part of the spermatic cord and travels superiorly and medially toward the inguinal canal; it is not typically felt as a distinct structure behind the testicle. The spermatic cord contains multiple structures and is felt as a thicker cord higher up, rather than a discrete lump on the posterior surface. The testicular artery is a small vessel inside the cord and is not palpated as a separate palpable structure behind the testis.

So, the epididymis is the best answer because it is the characteristic structure you feel on the top/posterior aspect of each testicle during palpation.