Pediatric epididymal cyst (spermatocele)

An epididymal cyst (ep·​i·​did·​y·​mal - cyst) – also known as spermatocele (sper·​mato·​cele) – is a cyst on the scrotum on top of the testicle.

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What is a pediatric epididymal cyst (spermatocele)?

A spermatocele (epididymal cyst) is a fluid-filled cyst that develops in the long, tightly coiled tube that is located above and behind each testicle (epididymis). The fluid in the cyst may contain dead sperm. A spermatocele feels like a smooth, firm lump in the scrotum on top of the testicle. Having an epididymal cyst does not affect fertility.

Epididymal Cyst (Spermatocele) - Children's Health

What are the signs and symptoms of a pediatric epididymal cyst (spermatocele)?

Signs and symptoms of an epididymal cyst include:

  • Feeling of pressure at the base of the penis
  • General enlargement of the scrotum
  • Lump or mass above the testicle on one side of the scrotum
  • Pain
  • Redness
  • Swelling

In many cases, the cyst causes no symptoms or pain.

What is the cause of a pediatric epididymal cyst (spermatocele)?

There is no confirmed cause.