Atopic Dermatitis: a Short Summary
Recognizing melasma
- Melasma can be epidermal, dermal or mixed
- However, Wood’s light does no reliably define the depth of pigment
- Reflectance confocal microscopy is a more definitve method of doing so.
- Clinical Assesment of melasma is done through MASI (Melasma Area Severity Index)
Melasma (Chloasma) (Pregnancy Mask): Differential Diagnosis:
- Post-inflammatory hyperpigmentation (PIH)
- Drug-induced (minocycline…)
- Frictional melanosis
- Nevus of Ota
- Solar lentigenes (considered to be flat seborrheic keratosis according to some authors)
Contributors:
Dr Christophe HSU – dermatologist. Geneva, Switzerland
Bibliography: Katsambas A (Conflicts of Interest: Abbott, Janssen-Cilag, Leo Pharma, Merck, Schering-Plough). Melasma: Pathogenesis and Treatment. 70e Réunion annuelle de l’AAD (American Academy of Dermatology) – San Diego, California, United States of America (USA)
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