Tunica vaginalis cyst

Tunica vaginalis cyst is a type of benign paratesticular cystic lesion. This arises in associated to the tunica vaginalis. It is cyst that arises from the tunica and conjunction with tunica albuginea cysts, they are collectively termed as scrotal tunica cysts.

Their exact cause is unknown, although history of trauma, haemorrhage and/or infection may be present.

On microscopic analysis, they are lined by nonciliated cuboidal cells, and they contain serous fluid and cellular debris.

Scrotal ultrasound

They are typically seen as a small (2-5-mm) anechoic uni-or multilocular cystic lesion within the layers of the tunica vaginalis. Larger cysts can cause compression the testicular parenchyma thereby simulate an intratesticular lesion. Some cysts may have low-level echoes and / or calcification.

For ultrasound appearances consider

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Article information

rID: 29599
System: Urogenital
Synonyms or Alternate Spellings:
  • Tunica vaginalis cysts
  • Cyst of the tunica vaginalis
  • Cysts of the tunica vaginalis

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