Nummular dermatitis

Nummular dermatitis
Nummular dermatitis
Classification and external resources
ICD-10 L30.0
ICD-9 692.9
DiseasesDB 33703
MedlinePlus 000870
eMedicine derm/298

Nummular dermatitis (also known as "Discoid eczema,"[1] "Microbial eczema,"[1] "Nummular eczema,"[2] and "Nummular neurodermatitis"[2]:82) 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.")

Contents

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 genetic condition, is not related to 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.[3]

Other causes

Nummular eczema can also be worsened by stress and caffeine, which dehydrates the body and thus the skin.[citation needed]

Treatment

One of the keys to treatment and prevention involves keeping the skin moisturized. Lotions, creams, and bath oils may help prevent an outbreak. If the condition flares up, a common treatment involves the application of topical corticosteroids. Oral antihistamines may help lessen itching. More severe cases sometimes respond to ultraviolet light treatment.

See also

References

  1. ^ a b Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. ISBN 1-4160-2999-0. 
  2. ^ a b James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. ISBN 0-7216-2921-0.
  3. ^ Krupa Shankar DS, Shrestha S (2005). "Relevance of patch testing in patients with nummular dermatitis". Indian journal of dermatology, venereology and leprology 71 (6): 406–8. doi:10.4103/0378-6323.18945. PMID 16394482. 

External links

v · d · eDermatitis and eczema (L20–L30, 690–693,698)
Atopic dermatitis
Besnier's prurigo
Seborrheic dermatitis
Pityriasis simplex capillitii · Cradle cap
Contact dermatitis
(allergic, irritant)
plants: Urushiol-induced contact dermatitis · African blackwood dermatitis · Tulip fingers
other: Abietic acid dermatitis · Diaper rash · Airbag dermatitis · Baboon syndrome · Contact stomatitis · Protein contact dermatitis
Eczema
Autoimmune estrogen dermatitis · Autoimmune progesterone dermatitis
Breast eczema · Ear eczema · Eyelid dermatitis · Hand eczema (Chronic vesiculobullous hand eczema, Hyperkeratotic hand dermatitis)
Pruritus/Itch/
Prurigo
by location: Pruritus ani · Pruritus scroti · Pruritus vulvae · Scalp pruritus
Drug-induced pruritus (Hydroxyethyl starch-induced pruritus) · Senile pruritus · Aquagenic pruritus (Aquadynia)
Adult blaschkitis · due to liver disease (Biliary pruritus · Cholestatic pruritus) · Prion pruritus · Prurigo pigmentosa · Prurigo simplex · Puncta pruritica · Uremic pruritus
Other/ungrouped
substances taken internally: Bromoderma · Fixed drug reaction
Nummular dermatitis · Pityriasis alba · Papuloerythroderma of Ofuji

M: INT, SF, LCT

anat/phys/devp

noco(i/b/d/q/u/r/p/m/k/v/f)/cong/tumr(n/e/d), sysi/epon

proc, drug (D2/3/4/5/8/11)

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  • Nummular eczema — Coin shaped patches of irritated skin most common on the arms, back, buttocks, and lower legs that may be crusted, scaling, and extremely itchy. The word nummular is taken from the Latin nummus, a small coin. * * * eczema presenting in discrete,… …   Medical dictionary

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  • nummular — ˈnəmyələ(r) adjective Etymology: French nummulaire, from Latin nummulus (diminutive of nummus coin) + French aire ar 1. : circular or oval in shape nummular lesions 2. a. : marked by circula …   Useful english dictionary

  • nummular — adjective Etymology: French nummulaire, from Latin nummulus, diminutive of nummus coin, probably from Greek nomimos customary, from nomos Date: 1846 characterized by circular or oval lesions or drops < nummular dermatitis > …   New Collegiate Dictionary

  • Dermatitis — Inflammation of the skin, either due to direct contact with an irritating substance, or to an allergic reaction. Symptoms of dermatitis include redness, itching, and in some cases blistering. There are two types of dermatitis: eczematous (eczema) …   Medical dictionary

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