Зображення 00248. Pityriasis versicolor on the skin of the chest

Pityriasis versicolor on the skin of the chest. The reddish-brown colour is typical. Scratching reveals very fine scales in affected areas. Pityrosporum yeast is a common saprophytic fungus on human skin, and fungal culture is of no use in the diagnostics. A coloured KOH-preparation is helpful in showing the "meat balls and spaghetti" silhouette. A single oral dose of 400 mg ketoconazole is an effective remedy leading to a remission enduring more than 6 months.