Tinea versicolor (also known as Pityriasis versicolor, Dermatomycosis furfuracea, or Tinea flava) is a fungal infection of the skin. It is caused by a type of yeast (Pityrosporum ovale) that lives naturally on your skin. For most people, it does not create issues. But for others, it slowly grows out of control and causes discoloration in your skin pigment.
The tinea fungus grows on the skin, and
Here are some pictures: