TY - CHAP M1 - Book, Section TI - Chapter 44. Granuloma Annulare A1 - Prendiville, Julie S. A2 - Goldsmith, Lowell A. A2 - Katz, Stephen I. A2 - Gilchrest, Barbara A. A2 - Paller, Amy S. A2 - Leffell, David J. A2 - Wolff, Klaus PY - 2012 T2 - Fitzpatrick's Dermatology in General Medicine, 8e AB - |PrintGranuloma Annulare at a GlanceRelatively common disorder; exact prevalence is unknown; favors children and young adults.A localized ring of beaded papules on the extremities is typical; generalized, subcutaneous, perforating, and patch subtypes also occur.The cause is unknown, and the pathogenesis is poorly understood.Pathologic features consist of granulomatous inflammation in a palisaded or interstitial pattern associated with varying degrees of connective tissue degeneration and mucin deposition.Most cases resolve spontaneously within 2 years. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/03/28 UR - accessmedicine.mhmedical.com/content.aspx?aid=56033878 ER -