Recognizing Atopic Dermatitis in Practice and Differentiating From Other Skin Conditions

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Mastering Atopic Dermatitis Treatment in Primary Care

Key Points on Atopic Dermatitis (AD)

• Clinical Presentation:
  • Red, scaly, itchy, dry, inflamed skin
  • Often involves face, trunk, extremities, and especially flexural areas
  • Common in childhood but can occur at any age
  • Chronic condition with repeated flares
  • Associated findings: Dennie-Morgan lines, keratosis pilaris, hyperlinear palms
• Patient Demographics:
  • Presentation varies by ethnicity:
    • African American patients: More fibrotic/papular lesions
    • Asian patients: May have psoriasis-like scaling
• Comorbidities:
  • Asthma, allergies, allergic rhinitis
  • Often has familial occurrence
• Differential Diagnosis:
  • Psoriasis: More silvery scale
  • Seborrheic dermatitis: Greasy yellow scale (brows, nasolabial folds, scalp)
  • Scabies: Papules in web spaces, umbilicus, axilla, breasts, genitals
  • Pityriasis rosea: “Christmas tree” pattern
  • Tinea corporis: Salmon-colored with annular/ring-like scaling
  • Contact dermatitis: Often concurrent with AD due to home remedies
  • Mycosis fungoides/cutaneous T-cell lymphoma: Important consideration in adults with “bathing suit distribution” rash unresponsive to AD treatments

Clinical Pearls

• Primary care providers are on the front lines of diagnosing AD
• Patient/family history and distribution pattern are key diagnostic factors
• Patients often have multiple concurrent conditions
• Consider mycosis fungoides in adults with treatment-resistant presentations