Nummular dermatitis
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{{Infobox_Disease |
Name = {{PAGENAME}} |
Image = |
Caption = |
DiseasesDB = 33703 |
ICD10 = {{ICD10|L|30||l|20}} |
ICD9 = {{ICD9|692.9}} |
ICDO = |
OMIM = |
MedlinePlus = 000870 |
eMedicineSubj = derm |
eMedicineTopic = 298 |
MeshID = |
}}
'''Nummular dermatitis''', also known as nummular eczema, is one of the many forms of [[dermatitis]]. Also known as '''discoid dermatitis''', it is characterized by round or oval-shaped itchy lesions. (The name comes from the Latin word "nummus," which means "coin.")
==Presentation==
The disorder is recurrent and chronic, and may appear at any age, although it is most common in people in their 60's. Nummular dermatitis does not appear to be a [[genetics|genetic]] condition, is not related to [[Food allergy|food allergies]], and is not contagious.
The coin-shaped patches can affect any part of the body, but the legs and buttocks are the most common areas. Flare-ups are associated with dry skin, so the [[winter]] season is a particularly bad time for those with this condition.
Other forms of dermatitis are at risk of developing.<ref name="pmid-16394482">{{cite journal |author=Krupa Shankar DS, Shrestha S |title=Relevance of patch testing in patients with nummular dermatitis |journal=Indian journal of dermatology, venereology and leprology |volume=71 |issue=6 |pages=406–8 |year=2005 |pmid=16394482 |doi=}}</ref>
==Treatment==
One of the keys to treatment and prevention involves keeping the skin moisturized. [[Lotion]]s, creams, and bath oils may help prevent an outbreak. If the condition flares up, a common treatment involves the application of topical [[corticosteroid]]s. Oral [[antihistamine]]s may help lessen itching. More severe cases sometimes respond to [[ultraviolet light]] treatment.
==References==
{{reflist}}
==External links==
* http://www.lib.uiowa.edu/hardin/md/dermnet/eczema6.html
* http://library.med.utah.edu/kw/derm/pages/desy_23.htm
{{Diseases of the skin and subcutaneous tissue}}
[[Category:Skin diseases]]
[[ja:貨幣状湿疹]]