Diagnosis Dermatitis

1 diagnosis

1.1 classification
1.2 terminology
1.3 common types

1.3.1 atopic
1.3.2 contact
1.3.3 seborrhoeic


1.4 less common types

1.4.1 dyshidrosis
1.4.2 discoid
1.4.3 venous
1.4.4 herpetiformis
1.4.5 neurodermatitis
1.4.6 autoeczematization
1.4.7 viral

diagnosis

diagnosis of eczema based on history , physical examination. in uncertain cases, skin biopsy may useful. eczema may prone misdiagnosis of food allergies.

patch tests used in diagnosis of allergic contact dermatitis.

classification

the term eczema refers set of clinical characteristics. classification of underlying diseases has been haphazard numerous different classification systems, , many synonyms being used describe same condition.

a type of dermatitis may described location (e.g., hand eczema), specific appearance (eczema craquele or discoid), or possible cause (varicose eczema). further adding confusion, many sources use term eczema interchangeably common type: atopic dermatitis.

the european academy of allergology , clinical immunology (eaaci) published position paper in 2001, simplifies nomenclature of allergy-related diseases, including atopic , allergic contact eczemas. non-allergic eczemas not affected proposal.

terminology

there several types of dermatitis including atopic dermatitis, contact dermatitis, stasis dermatitis, , seborrheic eczema. many use term dermatitis , eczema synonymously.

others use term eczema mean atopic dermatitis. atopic dermatitis known atopic eczema. in languages, dermatitis , eczema mean same thing, while in other languages dermatitis implies acute condition , eczema chronic one.

common types

diagnosis of types may indicated codes defined according international statistical classification of diseases , related health problems (icd).

atopic

atopic dermatitis allergic disease believed have hereditary component , runs in families members have asthma. itchy rash particularly noticeable on head , scalp, neck, inside of elbows, behind knees, , buttocks. common in developed countries, , rising. irritant contact dermatitis misdiagnosed atopic dermatitis.

contact

contact dermatitis of 2 types: allergic (resulting delayed reaction allergen, such poison ivy, nickel, or balsam of peru), , irritant (resulting direct reaction detergent, such sodium lauryl sulfate, example).

some substances act both allergen , irritant (wet cement, example). other substances cause problem after sunlight exposure, bringing on phototoxic dermatitis. 3 quarters of cases of contact eczema of irritant type, common occupational skin disease. contact eczema curable, provided offending substance can avoided , traces removed 1 s environment. (icd-10 l23; l24; l56.1; l56.0)

seborrhoeic

seborrhoeic dermatitis or seborrheic dermatitis ( cradle cap in infants) condition classified form of eczema closely related dandruff. causes dry or greasy peeling of scalp, eyebrows, , face, , trunk. in newborns causes thick, yellow, crusty scalp rash called cradle cap, seems related lack of biotin , curable. (icd-10 l21; l21.0)

less common types
dyshidrosis

dyshidrosis (dyshidrotic eczema, pompholyx, vesicular palmoplantar dermatitis) occurs on palms, soles, , sides of fingers , toes. tiny opaque bumps called vesicles, thickening, , cracks accompanied itching, gets worse @ night. common type of hand eczema, worsens in warm weather. (icd-10 l30.1)

discoid

discoid eczema (nummular eczema, exudative eczema, microbial eczema) characterized round spots of oozing or dry rash, clear boundaries, on lower legs. worse in winter. cause unknown, , condition tends come , go. (icd-10 l30.0)

venous

venous eczema (gravitational eczema, stasis dermatitis, varicose eczema) occurs in people impaired circulation, varicose veins, , edema, , particularly common in ankle area of people on 50. there redness, scaling, darkening of skin, , itching. disorder predisposes leg ulcers. (icd-10 i83.1)

herpetiformis

dermatitis herpetiformis (duhring s disease) causes intensely itchy , typically symmetrical rash on arms, thighs, knees, , back. directly related celiac disease, can put remission appropriate diet, , tends worse @ night. (icd-10 l13.0)

neurodermatitis

neurodermatitis (lichen simplex chronicus, localized scratch dermatitis) itchy area of thickened, pigmented eczema patch results habitual rubbing , scratching. there 1 spot. curable through behavior modification , anti-inflammatory medication. prurigo nodularis related disorder showing multiple lumps. (icd-10 l28.0; l28.1)

autoeczematization

autoeczematization (id reaction, autosensitization) eczematous reaction infection parasites, fungi, bacteria, or viruses. curable clearance of original infection caused it. appearance varies depending on cause. occurs distance away original infection. (icd-10 l30.2)

viral

there eczemas overlaid viral infections (eczema herpeticum or vaccinatum), , eczemas resulting underlying disease (e.g., lymphoma). eczemas originating ingestion of medications, foods, , chemicals, have not yet been systematized. other rare eczematous disorders exist in addition listed here.