Pityriasis versicolor alba. 17-year-old female patient who noticed these white patches after a summer vacation, which became more pronounced as the tan increased. Disseminately distributed (non-symmetrical), 0.2-0.4 cm large, roundish white patches confluent to larger areas (right side of the thorax). The spatter-like distribution pattern is typical for pityriasis versicolor.
Pityriasis versicolor alba: irregularly distributed, symptomless, bright spots, which in places have merged to form larger areas, appearing after repeated exposure to sunlight.
Pityriasis versicolor alba: masses of spores detectable in the stratum corneum of the epidermis (marked by arrows)
Pityriasis versicolor alba: native undercutting. numerous spore clusters (encircled) and fungal plexus (arrows) detectable. normal epithelia in the rectangle.
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