Which description matches a sebaceous cyst on the scrotum?

Which description matches a sebaceous cyst on the scrotum?

• A. Dermal fibroma
• B. Pilonidal cyst
• C. Sebaceous cyst
• D. Milium

Answer: (C)

Sebaceous cysts are benign, slow-growing, keratin-filled subcutaneous nodules that form when a hair follicle or sebaceous duct becomes blocked. On the scrotum, they present as a firm, mobile lump beneath the skin, often with a central punctum. If expressed, they can discharge a foul-smelling, cheesy keratin material. The cyst wall is lined by squamous epithelium and is filled with keratin debris. These cysts are usually painless unless inflamed or infected and are commonly treated by complete surgical excision to prevent recurrence. Other lesions don’t fit this pattern: a dermal fibroma isn’t a cystic structure filled with keratin; a pilonidal cyst typically occurs near the sacrococcygeal area; milium are tiny superficial keratin-filled cysts usually found on the face.

Sebaceous cysts are benign, slow-growing, keratin-filled subcutaneous nodules that form when a hair follicle or sebaceous duct becomes blocked. On the scrotum, they present as a firm, mobile lump beneath the skin, often with a central punctum. If expressed, they can discharge a foul-smelling, cheesy keratin material. The cyst wall is lined by squamous epithelium and is filled with keratin debris. These cysts are usually painless unless inflamed or infected and are commonly treated by complete surgical excision to prevent recurrence.

Other lesions don’t fit this pattern: a dermal fibroma isn’t a cystic structure filled with keratin; a pilonidal cyst typically occurs near the sacrococcygeal area; milium are tiny superficial keratin-filled cysts usually found on the face.