<unk>  An<unk>  is a cyst of the epididymis containing serous liquid. They are difficult to differentiate from a spermatocele except by aspiration, since a spermatocele contains milky-appearing sperm.
Epididymal cyst
Sperm granuloma
Paraovarian cyst
Spermatocele
Pineal gland cyst
Theca lutein cyst
Hydrocele testis
Ectopic testis