Tubular ectasia of the rete testis is a rare benign entity that is often associated with some degree of obstruction at the epididymal level, either post-traumatic or postinfectious in nature. Its characteristic ultrasound findings have been well described in the radiologic literature. We report 6 cases of dilated rete testis diagnosed by ultrasound at our hospital over a 2-year period. Recognition of tubular ectasia by ultrasound, in the appropriate clinical setting, may eliminate unnecessary testicular biopsy or orchiectomy.