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Definition of Sebaceous cyst
1. Noun. A common cyst of the skin; filled with fatty matter (sebum) that is secreted by a sebaceous gland that has been blocked.
Exact synonyms: Pilar Cyst, Steatocystoma, Wen
Specialized synonyms: Chalazion, Meibomian Cyst
Generic synonyms: Cyst
Specialized synonyms: Chalazion, Meibomian Cyst
Generic synonyms: Cyst
Medical Definition of Sebaceous cyst
1. A closed sac (sebaceous gland) within the tissue containing oily or fatty semi-solid material. These cysts are found most commonly on the genitalia, vulva or labia. Features include a nontender, small lump in the skin. Sebaceous cysts which turn red or tender may require treatment with oral antibiotics. Warm wet compresses may help the cyst expel some of its contents. Surgical excision of the cyst may be necessary to prevent recurrence. (27 Sep 1997)