Intratesticular tubular ectasia

Rete tubular ectasia , also known as cystic transformation of rete testis is a benign condition, usually found in older men, involving numerous small, tubular cystic structures within the rete testis. Presentation It is usually found in men older than 55 years and is frequently found on bilateral testes but often asymmetrical. [Source: Wikipedia ]

Dilatation of rete testis
May Cause
Cystic testicular mass