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Granuloma annulare

  • Symptoms

    Granuloma annulare usually causes no other symptoms, but the rash may be slightly itchy.

    Patients usually notice a ring of small, firm bumps (papules) over the backs of the forearms, hands, or feet. Occasionally, they may find a number of rings.

    Rarely, granuloma annulare may appear as a firm nodule under the skin of the arms or legs. In some cases, the rash may spread all over the body.

    Signs and tests

    Your health care provider may think you have a fungal infection when looking at your skin. A skin scraping and KOH test can be used to tell the difference between granuloma annulare and a fungal infection.

    You may also need a skin biopsy to confirm the diagnosis of granuloma annulare.