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Granuloma annulare (GA) is a benign inflammatory dermatosis. T. Colcott Fox first described granuloma annulare in ; however, not until. Granuloma annulare. Authoritative facts about the skin from DermNet New Zealand. Granuloma annulare often causes a slightly raised patch on your skin that has a noticeable (and sometimes scaly) border.

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Less common annular skin conditions e. An accurate diagnosis is important to your health. Tips for managing Getting an accurate diagnosis is important. Infants rarely get this skin condition. Harth W, Linse R. Andrews’ Diseases of the Skin: Resolution of disseminated granuloma annulare following isotretinoin therapy. How do dermatologists diagnose granuloma annulare? The lack of any surface changes to the skin is the key feature that distinguishes granuloma annulare from these other skin conditions.

Differential diagnosis of annular lesions.

Rare Disease Database

Often, a diagnosis anullar be made without a punch biopsy, but in clinically confusing situations it may be helpful, especially with the subcutaneous variant of granuloma annulare. Perforating granuloma annulare is rare and occurs most often in children and young adults. Generalised and atypical variants are more persistent, sometimes lasting decades.


This happens whether or not you treat it. J Am Acad Dermatol. If you see a anuar change, make an appointment to see your dermatologist. They may be useful for a differential diagnosis: Dapsone is an antibiotic commonly used for dermatitis herpetiformis or Hansen’s disease.

In more than one half of patients, it resolves spontaneously within two months to two years. Causes Some types granuoma this skin condition develop almost exclusively in children, while other types tend to appear in older adults.

Granuloma annulare

Together we are strong. Two isotretinoin treatment failures also have been published. Large pink, purple granloma skin-coloured patches appear on a larger portion of the body, including the trunk, arms and legs. When it’s not ringworm: Self-skin examination New smartphone apps to check your skin Learn more Sponsored content. The most commonly affected sites include the feet, hands, and fingers.

They are often found around the skin folds of the trunk armpits, groin. See the DermNet NZ bookstore. They are found on the lateral or dorsal surfaces of the hands and feet Figure 2. Nov 15, Issue. Hsu S, et al. The possible benefit of treatment, which is unclear given the lack of clinical trials, must be balanced against the significant toxicities of most of these treatments. It also occurs on the sides and circumferential at the waist and without therapy can continue to be present for many years.


Ferri’s Clinical Advisor It may return months or years after it clears. Differential diagnosis of annular lesions.

Diagnosis and Management of Granuloma Annulare – – American Family Physician

Patients should be warned that all of these treatments could cause scarring and atrophy. Some patients see their clear skin in a few months.

Localised granuloma annulare is sometimes associated with autoimmune thyroiditis but it does not clear up with thyroid replacement. Granuloma annulare affects patients of all ages. Bolognia JL, et al. More research is necessary to determine the long-term safety and effectiveness of topical PUVA therapy for individuals with granuloma annulare. Causes The exact cause of granuloma annulare is unknown idiopathic.

Localized granuloma annulare in a year-old woman who has had the eruption on her A wrists and B ankles since age