dermatologic disorders
Seborrheic Dermatitis
Diagnosis of Seborrheic Dermatitis
Clinical evaluation Diagnosis of seborrheic dermatitis is made by physical examination. Seborrheic dermatitis of the scalp must be differentiated from other disorders: Atopic Dermatitis (Eczema) of the scalp: This disorder typically first manifests with fine, white, dry scaling rather than the greasy yellowish scale of seborrheic dermatitis. Scalp Psoriasis : The erythematous and scaly plaques are sharply demarcated. Rosacea : When rosacea affects the face, it first manifests with erythema, papules, and papulopustules but not with scaling (however, patients can have both seborrheic dermatitis and rosacea). 