School ager with difficulty voiding Pediatric Imaging Genitourinary May 16, 2026February 27, 2026 Lateral image from a retrograde urethrogram exam shows a short tubular tract filled with contrast inferior to the contrast filled urethra. There is also a persistent long narrowing in the membranous urethra. The diagnosis was Cowper duct syringocele in a patient with a stricture of the membranous urethra. Related Published May 16, 2026February 27, 2026