<prompt> A female developed brown macule on the cheek, forehead and nose after exposure to light following delivery of a baby, the diagnosis isSLEChloasmaPhotodermatitisAcne rosacea  <response>: Answer is B Chloasma: Patient has a characteristic brown macule on cheek, with no history suggestive of any systemic involvement, with positive history of delivery of a baby suggesting pregnancy. 