Spermatocele

Spermatocele is a benign cyst that forms near the testicle, specifically in the epididymis, which is part of the male reproductive system. It contains a milky or clear fluid that often includes sperm. This condition usually causes a painless, soft lump above or behind the testicle. While it generally does not affect fertility or cause serious health problems, it can sometimes cause discomfort or a feeling of heaviness in the scrotum. The cyst is typically discovered during a physical exam or self-examination. It is important to distinguish a spermatocele from other scrotal masses that may require different management.

Spermatocele is a benign cystic dilation of the efferent ductules or the rete testis within the epididymis, containing spermatozoa and fluid. It arises due to obstruction of the epididymal ducts, leading to accumulation of sperm and secretions. The cyst is usually located at the head of the epididymis and is distinct from the testicular parenchyma. Clinically, it presents as a painless, well-circumscribed, and fluctuant scrotal mass that transilluminates on examination. It is important to differentiate it from other scrotal masses such as hydrocele, varicocele, or testicular tumors. The condition is generally asymptomatic but may cause discomfort if large. It has no malignant potential and does not typically impair fertility.