Ruptured follicular cysts & follicles

    Article Contributors: 
    Sean Klepper M.D.
    Artur Zembowicz M.D....

    Clinical Features:

    • The most common cause of a suppurative granulomatous response
    • Present as a tender, erythematous nodule

    Histologic Features:

    • Dense, nodular, follicle-centered inflammatory infiltrate comprised predominantly of neutrophils, macrophages and giant cells
    • Fragments of hair and/or keratinous debris are seen within the infiltrate and phagocytized by by multinucleated giant cells.
    • The inflammatory response sometimes extends into the subcutaneous fat with a resultant lobular panniculitis.

    Cases associated with this book:

  • Ruptured follicular cyst
    Author: Artur Zembowicz M.D. Ph.D.

    Conference: Dermpedia Teaching Collection