Table 3.

Differential diagnosis of AD

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