Granuloma annulare
Granuloma Annulare
Granuloma annulare (pronunciation: /ɡræn.jʊˈloʊ.mə ˈæn.jʊˌlɛər/) is a benign, chronic skin condition characterized by small, raised bumps that form a ring with a normal or sunken center.
Etymology
The term "granuloma" originates from the Latin word "granulum," meaning "small grain," and "annulare" from the Latin "annulus," meaning "ring." The name reflects the condition's characteristic appearance of small, ring-like formations.
Symptoms
The primary symptom of granuloma annulare is the appearance of small, firm bumps (or lesions) over the skin. These bumps are usually skin-colored or slightly reddish and often form ring patterns, though they can also appear in lines or in a widespread pattern. The bumps are typically not painful or itchy.
Causes
The exact cause of granuloma annulare is unknown. However, it has been associated with certain conditions such as diabetes, thyroid disease, and HIV/AIDS. Some cases have been reported following vaccinations, sun exposure, or insect bites.
Diagnosis
Diagnosis of granuloma annulare is typically made through a physical examination of the skin. In some cases, a skin biopsy may be performed to confirm the diagnosis and rule out other skin conditions.
Treatment
Treatment for granuloma annulare is not always necessary, as the condition often resolves on its own. However, if the lesions are widespread or causing discomfort, treatment options may include corticosteroid creams, light therapy, or oral medications.
Related Terms
- Dermatology: The branch of medicine dealing with the skin and its diseases.
- Lesion: Any abnormal damage or change in the tissue of an organism, usually caused by disease or trauma.
- Biopsy: A medical test involving the extraction of sample cells or tissues for examination to determine the presence of disease.
External links
- Medical encyclopedia article on Granuloma annulare
- Wikipedia's article - Granuloma annulare
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