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Excision of Epidermal Inclusion Cyst

Marcus Lester R. Suntay, MD, FPCS, FPSPS, FPALES
Philippine Children's Medical Center

Abstract

Epidermal inclusion cysts, also called keratin or epithelial cysts, are benign lumps that develop beneath the skin. They are the most common cutaneous cysts and can be found anywhere on the body, with the face, neck, and trunk being the most common locations. Epidermal inclusion cysts are caused by a build-up of keratin due to obstruction or disruption of the skin or skin follicle. It presents as a slow-growing, painless lump, usually with a punctum in the middle that represents the blockage of keratin excretion. No treatment is usually necessary unless they cause pain, cosmetic concerns, or become infected. Surgical excision appears to be the mainstay of treatment, which prevents cyst recurrence. Here, we present the case of a 64-year-old male with a mass on his upper back. The mass was noted to be gradually enlarging, and thus excision was performed in order to prevent further growth and infection.

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