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    Glossary Granulomas

    small clusters of immune cells forming to isolate foreign substances

    Granulomas are small areas of inflammation caused by the immune system's attempt to isolate substances it perceives as foreign but cannot eliminate. They often form in response to infections, such as tuberculosis, or inflammatory conditions, like sarcoidosis, and are characterized by a collection of immune cells, primarily macrophages, that transform into a more specialized form called epithelioid cells.

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    1. Management of Visible Granulomas Following Periorbital Injection of Poly-L-Lactic Acid Ophthalmic Plastic and Reconstructive Surgery · 2007 · 49 citations
    2. Granulomatous pigmented purpuric dermatosis containing Propionibacterium acnes European Journal of Dermatology · 2018 · 8 citations
    3. Lichen Planopilaris With Foreign-Body Granuloma The American Journal of Dermatopathology · 2014 · 5 citations
    4. Caution with Hair Dye: Foreign Body Skull Erosive Granuloma from Exogenous Hair Pigmentation Annals of the Academy of Medicine Singapore · 2020 · 3 citations
    5. Delayed granulomatous eruption of the nose associated with ruxolitinib JAAD case reports · 2020 · 2 citations
    6. Granulomatous skin involvement in a patient with an unusual <i>NOD2</i> mutation Australasian Journal of Dermatology · 2016 · 1 citations
    7. Granulomatous Alopecia Areata: A Rare Report With a Review American Journal of Dermatopathology · 2025
    8. Granuloma Annulare Mimicking Alopecia Mucinosa in a Child: An Atypical Presentation Indian Journal of Paediatric Dermatology · 2025
    9. BH10 Granulomatous scarring alopecia associated with rheumatoid arthritis: a case report with distinct folliculocentric granulomas histologically mimicking granulomatous alopecia areata 2023
    10. Dermoscopy of annular elastolytic giant cell granuloma Anais Brasileiros de Dermatologia · 2022
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