| Atopic dermatitis |
- Flexural areas, face, eyelids, and hands frequently involved
- Personal or family history of flexural eczema, asthma, allergic rhinitis, or hay fever during infancy or childhood
|
| Irritant contact dermatitis |
- History of irritant exposure
- More demarcated and less itchy than allergic contact dermatitis
- Relevant patch testing negative; may coexist with allergic contact dermatitis
|
| Seborrheic dermatitis |
- Greasy, scaly plaques in the central part of the face
- Frequent involvement of scalp, eyebrows, and eyelids
- Central chest and folds sometimes involved
- Absence of edema and vesiculation
|
| Dyshidrotic eczema |
- Recurrent vesicular eczema of the hands and/or feet
- Deep-seated, multilocular vesicles on the sides of the digits and on palmar or plantar skin
- Dorsal surfaces usually not involved
|
| Psoriasis |
- Demarcated, erythematous, and scaly plaques; frequent involvement of elbows and knees; nail pitting may be seen at close inspection
- Absence of vesiculation, but pustules may be present on palms and soles
- Often less pruritic than allergic contact dermatitis
|
| Stasis dermatitis |
- Medial aspects of lower legs usually involved; skin color changes are frequent
- Other signs of chronic venous insufficiency usually present
- Persistent stasis dermatitis at higher risk for secondary contact sensitization
|
| Asteatotic eczema (eczema craquelé) |
- Crackled patches of dry skin on the lower legs
- Lack of inflammation
|
| Tinea manuum |
- Typically unilateral and asymmetrical
- Inflammatory edge
- Sometimes associated with an autoeczematization reaction
|
| Autoeczematization (autosensitization) reaction |
- Diffuse, pruritic, papulovesicular eruption
- May be associated with allergic contact dermatitis, stasis dermatitis, and bacterial or fungal infection
|
| Mycosis fungoides (patch and plaque stage) |
- Scaly patches or plaques, often pruritic, most frequently located on the trunk or buttocks
- History of lesions waxing and waning over years
- Absence of edema and vesiculation
|
