Tinea versicolor: Tinea versicolor is relatively common. It is caused by pityrosporum ovale, a type of yeast that is normally found on human skin. The main symptom is patches of discolored skin with sharp borders (edges) and fine scales. The patches are often dark reddish-tan in color. The most common sites are the back, underarms, upper arms, and chest.
Answered 3/3/2016
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