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Granuloma Annulare

Benign granulomatous disease of unknown etiology characterized by a ring of localized or disseminated papules or nodules on the skin and palisading histiocytes surrounding necrobiotic tissue resulting from altered collagen structures.

Year introduced: 1992

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Tree Number(s): C17.300.200.495.380, C17.800.550.380, C23.550.382.375

MeSH Unique ID: D016460

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