Cowper duct syringocele

Dr Henry Knipe and Dr Yuranga Weerakkody et al.

Cowper duct syringocele refers to a cystic dilatation of the main duct of the bulbourethral (Cowper) glands.

Affected patients may present with postvoid dribbling, urinary frequency, weak stream, or haematuria.

Four groups of syringoceles have been described 2:

  • simple syringocele
    • minimally dilated duct
    • most frequent
  • perforate syringocele
    • bulbous duct that drains into the urethra via a patulous ostium
    • can appear as a diverticulum
  • imperforate syringocele: bulbous duct that resembles a submucosal cyst and appears as a radiolucent mass
  • ruptured syringocele: fragile membrane that remains in the urethra after a dilated duct ruptures

May be seen a unilocular cystic lesion at the posterior or posterolateral aspect of the posterior urethra 8

Usually seen as a midline oval structure at the penile base adjacent to the ventral aspect of the proximal bulbous urethra.

  • T2: high signal intensity

Treatment options include surgical incision of the obstructed duct (considered generally curative).

Share article

Article information

rID: 52717
System: Urogenital
Tag: cases
Synonyms or Alternate Spellings:
  • Cowper's syringocele
  • Cowper syringocele
  • Cowper's syringocoele
  • Cowper gland syringocele
  • Cowper's gland syringocele
  • Cowper's duct syringocele
  • Bulbourethral duct syringocele
  • Bulbourethral duct syringoceles

Support Radiopaedia and see fewer ads

Cases and figures

  • Drag
    Case 1
    Drag here to reorder.
  • Drag
    Case 2
    Drag here to reorder.
  • Updating… Please wait.
    Loadinganimation

    Alert accept

    Error Unable to process the form. Check for errors and try again.

    Alert accept Thank you for updating your details.