It has been hypothesized that it could result from a congenital retention cyst of Cowper's gland main duct; this could be particularly true when present in pediatric patients .
Syringoceles were visualized by ultrasound (US) at the anatomic region of Cowper's gland in some cases [4, 10, 11]; however, whenever US results are questionable, retrograde urethrography should be done, which confirms the diagnosis .
For the Cowper's glands, the normalized dose-response curves produced by the four laboratories were similar, and the weight change ranged from 273% to 417% at 50 mg/kg/day MT relative to the vehicle control.
The normalized dose-response curves produced by the four laboratories were similar for Cowper's glands. The weight change ranged from 36% to 42% at a dose of 100 mg/kg/day VCZ relative to the positive control.