Ultrasound diagnosis of unusual extratesticular mass: case report and review of the literature.

The adenomatoid tumor of the epididymis (EAT) is a neoplasm located in the paratesticular region. Mesothelial origin has been mentioned and inflammation has played some role in the development of these tumors. Physical examination and testicular ultrasound constituted important tools in the diagnosis. Some reports have mentioned malignant behavior, but it is very rare. Surgical treatment is the procedure of choice. We present the case of a 46-year-old patient with an adenomatoid tumour located in the head of the left epididymis that referred to our department with gradually enlarged intrascrotal mass.