A 42-year-old HIV-positive man recently returned from a safari in sub-Saharan Africa. He presented to his primary care physician for his annual preventative medicine examination. He is asymptomatic and continues to be on highly active anti-retroviral therapy. As part of his annual checkup, he undergoes an anal Pap test. His anal Pap test is negative for squamous cell dysplasia, but the following objects are present ranging from 10–60 μm in size (Figures 1–3):
|Justin Juskewitch, M.D., Ph.D.
Resident, Anatomic/Clinical Pathology
|Audrey Schuetz, M.D.
Senior Associate Consultant, Clinical Microbiology
Associate Professor of Laboratory Medicine and Pathology,
Mayo Clinic College of Medicine