Tinea versicolor. A practical guide for primary care physicians.

The characteristic pigmentary changes in tinea versicolor are easy to distinguish from dermatophyte infections of the skin. When specific identification is needed, the diagnosis can be confirmed microscopically with a potassium hydroxide preparation or Polysciences Multiple Stain. Tinea versicolor responds readily to topical therapy or oral ketoconazole, but recurrences are common.