Granuloma Annulare

September 19, 20130 Comments

Granuloma annulare is a type of skin condition that causes raised bumps that are red in color. It often occurs in the hands and feet and is common among children and teenagers but it can develop on any age group. What exactly causes granuloma lesions on the skin is not known till date but it is believed to be caused by skin injuries or medications. These lesions are generally harmless but it can cause itchiness and no treatment is required for resolving these lesions. It is also called as necrobiotic papulosis.

Symptoms :

There are many varieties of granuloma annulare and hence the symptoms also vary with the type of lesions. Localized type of granuloma is most common in children. Each lesion has definite circular border measuring up to 2 inches in diameter. This type of lesions occurs often in the extremities like hands, elbows, fingers, ankle and feet and is more common in women than men. It takes several weeks or even months for the lesions to clear. Sometimes they may recur after weeks of clearance. Thyroid replacement therapy is not effective in curing the lesions of this type.

Perforated Granuloma :

Perforated type of granuloma is nto common and sometimes it appears in generalized form on the hands. The collagen that is accumulated on the skin is sent out through the superficial layer of the skin called epidermis. This type of lesions can cause itchiness and may feel tender. Here the lesions occur on large portion of the body like trunk or arms and legs. It is largely seen in adults rather than children.

Atypical Granuloma :

This type of granuloma develops in rare parts of the body like palms and ears and the lesions are sensitive to sunlight. The symptoms include high rate of itchiness with moderate pain.

Subcutaneous Granuloma :

This type is common in teenagers and often it occurs as big lumps instead of rash.

Causes :

Exact cause for the development of granuloma lesions is not known. It can be due to hypersensitivity reaction caused on dermis layer of the skin. It can be due to inflammation caused by tumor necrosis factor alpha. The formation of lesions is triggered by animal bites, severe infections like hepatitis, vaccinations and exposure to sunlight. People with diabetes and thyroid problem are prone to develop granuloma.

Tests :

Granuloma can be diagnosed easily due to its appearance. Your doctor may do a biopsy of the lesion by taking small sample portion of the lesion and testing it on the laboratory.

Images, Pics, Photos and Pictures of Granuloma Annulare :

Granuloma Annulare Granuloma Annulare Granuloma Annulare Granuloma Annulare

Treatment :

Often, no treatment is needed for resolving the lesions formed due to granuloma since it will disappear on its own within few weeks or months. In case if the lesions are very itchy and painful and does not resolve even after many months, your doctor will give you steroid injections on the affected skin layer.

Cryotherapy is done using liquid nitrogen for freezing the lesions which will eventually shrink and wither off from the skin. Laser abrasion is an effective method for treating granuloma. Sometimes your doctor will prescribe topical ointments that contain imiguimod which are effective in clearing these lesions.

Medications like isotretinoin, dapsone and potassium iodide are used largely. Some doctors suggest hydroxychloroquine, allopurinol or pentoxifyline or combination of antibiotic pills like oflaxacin/rifampicin/minocycline. Many times granuloma will disappear in response to this therapy but will return after some weeks/months.

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