A rash from zinc deficiency presenting with a characteristic periorificial (mouth, anus) and acral (hands, feet) distribution of eczematous and vesiculobullous lesions.
An eczematous reaction in a specific pattern or shape that corresponds to the area of contact with an external allergen.
Eczema due to dry skin, especially in the elderly, characterized by a "crazy-paving" or cracked porcelain appearance, primarily on the shins.
The classic form of eczema, characterized by pruritus and a distribution that varies with age: facial and extensor in infants, flexural in children and adults.
A generalized, itchy, eczematous "id reaction" that occurs in response to a primary inflammatory focus, such as a fungal infection or stasis dermatitis, elsewhere on the body.
A severe, persistent, eczematous photosensitivity reaction on sun-exposed skin, often leading to marked lichenification.
Various primary immunodeficiencies (e.g., Wiskott-Aldrich, Omenn syndrome) can present with severe, widespread, intractable eczematous rashes from birth.
Presents as intensely itchy, well-demarcated, coin-shaped, weeping or scaly plaques, typically on the extremities.
A specific type of eczema on the hands and feet characterized by an eruption of small, deep-seated, "tapioca-like" vesicles.
The acute cutaneous form can present as a morbilliform eruption that can become confluent and eczematous, occurring after a stem cell transplant.
A rare metabolic disorder that can cause a pellagra-like, photosensitive, eczematous rash along with neurological symptoms.
A bacterial infection that can mimic eczema but is distinguished by its characteristic honey-colored, crusted erosions.
Presents in infants as erythematous patches with greasy scale, most characteristically on the scalp ("cradle cap") and in the diaper area.
Hyper-IgE syndrome is an immunodeficiency characterized by recurrent "cold" abscesses, severe eczema, and characteristic facial features.
A rare neoplastic disorder that can present as a scaly, seborrheic dermatitis-like eruption in the scalp and intertriginous areas, often with petechiae.
A historical term for a severe, exfoliative erythroderma in infants with seborrheic features, diarrhea, and failure to thrive, linked to complement deficiency.
A localized plaque of thickened, leathery (lichenified) skin with exaggerated skin lines, resulting from chronic scratching of an initially eczematous area.
A genetic disorder characterized by congenital ichthyosis, a specific hair shaft defect (trichorrhexis invaginata), and severe atopic dermatitis.
An untreated metabolic disorder that can lead to fair skin and hair, and a generalized, dry, eczematous rash.
An eczematous eruption that is strictly limited to sun-exposed areas of skin, caused by a drug that becomes an allergen after UV exposure.
A parasitic infestation causing an intensely pruritic, eczematous eruption with characteristic burrows, papules, and nodules, especially in the web spaces, wrists, and genitalia.
A common eczema characterized by greasy, yellowish scale on an erythematous base, with a predilection for the scalp, face (eyebrows, nasolabial folds), and chest.
The "great imitator," which can present as scaly papules and plaques that may look eczematous, but often involves the palms and soles.
A leukemic form of cutaneous T-cell lymphoma presenting as a generalized, intensely pruritic erythroderma that may have an eczematous appearance.
A toxin-mediated disease in children causing diffuse, tender erythema followed by widespread superficial blistering and desquamation, which can be mistaken for severe eczema initially.
An eczematous rash on the lower legs caused by chronic venous insufficiency, often with associated edema, hyperpigmentation, and risk of ulceration.
A fungal "ringworm" infection that can be eczematous but is distinguished by its annular shape with a raised, scaly, advancing border.
An X-linked immunodeficiency with a classic triad of thrombocytopenia, immunodeficiency, and a severe, difficult-to-treat eczematous rash.
