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    Glossary Trichilemmal Cysts

    non-cancerous, keratin-filled lumps typically found on the scalp

    Trichilemmal cysts, also known as pilar cysts, are non-cancerous, fluid-filled lumps that typically develop on the scalp. They originate from the outer root sheath of hair follicles and are filled with keratin, a protein found in hair, skin, and nails. These cysts are usually firm, smooth, and can sometimes be hereditary.

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    1. Baker′s dozen on the scalp: An interesting case of multiple trichilemmal cyst Journal of Cutaneous and Aesthetic Surgery · 2014 · 5 citations
    2. Osseous Metaplasia and Mature Bone Formation With Extramedullary Hematopoiesis in Trichilemmal Cyst American Journal of Dermatopathology · 2013 · 3 citations
    3. Trichilemmal Cysts With Divergent Ductal Differentiation: A Series of 4 Cases 2020 · 2 citations
    4. Ultrastructural characteristics of trichilemmal cysts: report of two cases Medical Electron Microscopy · 2001 · 2 citations
    5. The Value of Ultrasound for Differentiating Trichilemmal Cysts From Epidermoid Cysts Journal of Ultrasound in Medicine · 2023 · 1 citations
    6. Trichilemmal cyst of the neck: case report and review of the literature 2021 · 1 citations
    7. Clinicopathological factors associated with trichilemmal cysts JPRAS Open · 2025
    8. GWAS Identifies Three Susceptibility Loci for Trichilemmal Cysts 2021
    9. Trichilemmal cysts of the scrotal wall Sonography · 2015
    10. Proliferative trichilemmal cyst of the plantar surface: An unusual localization: A case report World Journal of Advanced Research and Reviews · 2026
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