Hair loss in pityriasis versicolor lesions: a descriptive clinicopathological study.

Background: We have observed that hair thinning and/or loss occur at times as a presenting symptom or sign in patients with pityriasis versicolor (PV).

Objective: Our objective was to verify and explore this clinical observation and depict its underlying pathology.

Methods: A total of 39 patients with PV were examined during a period of 11 months and skin biopsy specimens were taken from lesional and nonlesional skin.