Figure 2a. Adenomatoid tumor of the epididymis. (a) US image shows an approximately 1 x 2-cm fluid-filled structure with septa within the right hemiscrotum (arrow). The structure is separate from the testicle (T), which has a normal appearance. No flow was seen within the septated structure at color Doppler US. (b) Photograph of the cut surface of the gross specimen reveals a white-tan, homogeneous solid nodule. Scale is in centimeters.