Which histologic findings are characteristic of pediatric tinea versicolor?

Updated: Jan 27, 2020
  • Author: Lyubomir A Dourmishev, MD, PhD; Chief Editor: Dirk M Elston, MD  more...
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Answer

The characteristic histological changes include hyperkeratosis, parakeratosis, and slight acanthosis with a mild perivascular inflammatory infiltrate in the upper dermis. The organism is usually present in the upper layers of the stratum corneum, and electron microscopy reveals invasion between and within the keratinized cells.

M furfur is detected by hematoxylin and eosin (H and E) stain alone, although periodic acid-Schiff (PAS) or methenamine-silver staining facilitates detection.


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