A 27-year-old African-American woman presents with a history of white spots on her face for the past 2 monthsShe reports that she has been applying concealer to cover the lesions as they have been progressively increasing in number and size. She states that the patches are neither painful nor itchy, but they have caused her considerable emotional stress as her livelihood depends upon her appearance. She admits dying her hair, which has begun to turn gray. The patient also reports having a flawless complexion prior to the development of these lesions and enjoying good health since childhood. She has not applied any prescription or over-the-counter medications to the lesions. The patient denies using any skin lightening products or undergoing any cosmetic procedures, such as microdermabrasion or laser skin resurfacing, in the past 6 months.
She has no family history of any similar skin diseases, hypertension, asthma, or any other significant illnesses. She has no known allergies and is not taking any medications. She is single and has no children. The patient denies drinking alcohol, smoking cigarettes, or using illicit drugs.
Which of the following is the most likely diagnosis?
Hint: Note the unilateral, linear distribution of the macules and patches.
1)Idiopathic guttate hypomelanosis
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Tuberculoid leprosy
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Tinea versicolor
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Vitiligo