Ultrasonography Features of Adenocarcinoma Mimicking Cystadenoma of Rete Testis Rahadi Edo Fajrin* and Hanafiah Muhammad Rizal Abstract Background: Adenocarcinoma of rete testis is an extremely rare intra-scrotal extra-testicular neoplasm, this tumor usually occurs in men over 60 years of age but there are a few cases of younger patients described