A harmless cyst of the epididymis containing fluid and sperm.
n. a cystic swelling in the scrotum containing sperm. The cyst arises from the epididymis (the duct conveying sperm from the testis) and can be felt as a lump above the testis. Needle *aspiration of the cyst reveals a milky opalescent fluid that contains sperm. Treatment is by surgical removal.
Swelling of the testis or the surrounding tissues in the scrotum. Harmless and painless swellings include epididymal cysts, hydroceles, varicoceles, and spermatoceles. Cancer of the testis (see testis, cancer of) is rare but may be a cause of painless swelling. Swelling that is painful may be caused by a direct blow, torsion of the testis (see testis, torsion of), orchitis, epididymoorchitis, or, in very rare cases, cancer of the testis. Any swelling of the testes should be assessed promptly by a doctor.... testis, swollen
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