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