Malar rash (also known as the “butterfly rash,”) is an acute manifestation of lupus (SLE) seen in over 50% of patients. It is a bilateral, erythematous maculopapular rash which spares the nasolabial folds. The rash will last anywhere from days to weeks, and it can be painful/ itchy. It is a photosensitivity phenomenon.
Suspected Mechanism: the nasolabial folds are a relatively UV protected surface and therefore less affected.
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