Case 174. Reference case 174B

　 　 　 　
　 Tinea versicolor (pityriasis versicolor) on the arm of the same patient (gross findings). 　
　 　 　 　

　

 　 The fungi needs the sebum to grow, so that the seborrheic skin is the site of inhabitance. Mycelial form is evident in the lesion of tinea versicolor.