Case history
Case history #1
A middle-aged man complains of greasy scaling in the nasolabial folds and on his anterior scalp. In the past 6 months, his symptoms have waxed and waned, flaring in times of stress. Itchy, irritating scaly and flaky lesions are also present on his posterior scalp.
Case history #2
A 2-month-old infant is brought for evaluation of scalp scaling. The infant is otherwise in good health, was born at a normal full-term birth, and has healthy parents. On examination, there is diffuse scaling of the occipital scalp. The nasolabial folds and other cutaneous surfaces appear normal.
Other presentations
An explosive, often generalized, onset of SD may be a marker for HIV infection, regardless of age. It may appear as a central facial rash, similar to that associated with systemic lupus erythematosus.
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