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Table 3 Differential diagnosis of AD

From: Atopic dermatitis

Other skin conditions

• Contact dermatitis

• Seborrheic dermatitis

• Psoriasis

Infections

• Scabies

• Impetigo

Metabolic and nutritional deficiencies

• Phenylketonuria

• Zinc deficiency

Immunodeficiency syndromes with skin manifestations

• Wiskott-Aldrich syndrome

• Severe combined immunodeficiency syndrome with Omenn’s syndrome

• Immune dysregulation, polyendocrinopathy, enteropathy, X-linked

• Graft vs. host disease

• Dermatitis herpetiformis

Malignancies

• T-cell lymphoma