Granuloma annulare

Granuloma annulare

Infobox_Disease
Name = PAGENAME


Caption = Granuloma annulare on hand
DiseasesDB = 5414
ICD10 = ICD10|L|92|0|l|80
ICD9 = ICD9|695.89
ICDO =
OMIM =
MedlinePlus =
eMedicineSubj = derm
eMedicineTopic = 169
MeshID = D016460

Granuloma annulare is a chronic skin disease consisting of a rash with reddish bumps arranged in a circle or ring. Granuloma annulare is different from warts, and cryotherapy treatment will not work. It most often affects children, young and older adults and it is slightly more common in females (60/40 ratio).

Causes

The condition is usually seen in otherwise healthy people. Occasionally, it may be associated with diabetes or thyroid disease.

Its cause is unknown.cite web |url=http://www.mayoclinic.com/health/granuloma-annulare/DS00793/DSECTION=causes |title=Granuloma annulare: Causes - MayoClinic.com |format= |work= |accessdate=]

Presentation

Granuloma annulare is usually asymptomatic, but the rash may burn and be itchy. Patients usually notice a ring of small, firm bumps (papules) over the backs of the forearms, hands or feet, often centered around joints or knuckles. The bumps are caused by the clustering of T cells below the skin. Occasionally, multiple rings may be found. Rarely, granuloma annulare may appear as a firm nodule under the skin of the arms or legs.

Prognosis

Because granuloma annulare is usually asymptomatic, treatment may not be necessary except for cosmetic reasons.cite web |url=http://www.aafp.org/afp/20061115/1729.html |title=Diagnosis and Management of Granuloma Annulare - November 15, 2006 -- American Family Physician |format= |work= |accessdate=] Most lesions of granuloma annulare disappear in pre-pubertal patients with no treatment within two years while older patients (50+) have rings for upwards of 20 years. The appearance of new rings years later is not uncommon.

See also

* Granuloma

References

External links

*


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