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    Glossary Epidermal Cysts

    non-cancerous lumps under skin filled with keratin

    Epidermal cysts, also known as epidermoid cysts, are non-cancerous, small, round lumps beneath the skin. They form when skin cells multiply and create a sac filled with keratin, a protein found in skin, hair, and nails. These cysts are typically painless and slow-growing, but they can become inflamed or infected, causing discomfort.

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    1. IL-1 Receptor–Knockout Mice Develop Epidermal Cysts and Show an Altered Innate Immune Response after Exposure to UVB Radiation Journal of Investigative Dermatology · 2017 · 20 citations
    2. Immunoperoxidase anti-keratin staining of epidermal and pilar cysts British Journal of Dermatology · 1984 · 10 citations
    3. Importance of keen observation for the diagnosis of epidermal cysts: Dermoscopy can be a useful adjuvant tool Journal of the American Academy of Dermatology · 2014 · 7 citations
    4. Human papillomavirus 60-positive epidermal cyst and wart at a nonpalmoplantar location British Journal of Dermatology · 2005 · 4 citations
    5. Epidermal cyst of temporal bone as a delayed complication of myringoplasty Molecular and Clinical Oncology · 2017 · 1 citations
    6. Comedones and epidermal cysts on the abdominal skin of a dog occurring after a laparotomy. PubMed · 2024
    7. Atypical manifestation of giant epidermal cyst over sacrum coccygeal region in elderly male International journal of surgery science · 2022
    8. Epidermal cyst containing numerous spherules of keratin British Journal of Dermatology · 2004 · 36 citations
    9. Aggressive squamous cell carcinoma developing in a giant epidermal cyst of the abdomen International Journal of Dermatology · 2006 · 16 citations
    10. Eruptive vellus hair cysts of the labia majora: detection of openings of the cysts to the epidermis by dermoscopy European Journal of Dermatology · 2013 · 9 citations
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    Community 1 of 9

    1. Does applying Epidermal Growth Factor (EGF) make a difference in hair growth? Reddit · 21 Nov 2022
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    1. Epidermal Growth Factor
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