Concerned doctor with teen patient A sonogram reveals a 9-mm epididymal cyst. An 18-year-old male presents with sudden inguinal pain that did not result from an injury or lifting. A physical ...

A spermatocele (also called a spermatic or epididymal cyst) is a fluid-filled sac that grows in the epididymis -- a tightly coiled tube about 20 feet long where the sperm matures as it passes through.

Q I am 34 years old and recently noticed a lump in my scrotum. I was worried about this and saw my GP. He says that it is an epididymal cyst. What does this mean and will I need to have anything done ...