These are cryptococcus skin lesions. Cryptococcus is a yeast (type of fungus) that seldom causes infection, but is considered opportunistic (it affects people with weakened immune systems). Cryptococcus is one of the more common life-threatening fungal infections people with AIDS.
Review Date 9/22/2018
Updated by: Jatin M. Vyas, MD, PhD, Assistant Professor in Medicine, Harvard Medical School; Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital, Boston, MA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.