September 2019 — Infectious Disease

A 59-year-old kidney transplant patient presented after 1 week of low-grade fevers and non-productive cough. A CT scan of the lungs showed multiple mass-like lesions scattered bilaterally throughout, concerning for post-transplant lymphoproliferative disease or an infectious process. She underwent a bronchoalveolar lavage (BAL) with biopsy of a left upper lobe mass. Images of the Gram stain and modified acid-fast stain are shown in the figures below.

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Sarah Jung, Ph.D.
Fellow, Clinical Microbiology
Mayo Clinic
@JungASarah
Nancy Wengenack, Ph.D.
Consultant, Clinical Microbiology
Mayo Clinic
Professor of Laboratory Medicine and Pathology
Mayo Clinic College of Medicine and Science
Courtney Klapperich, MLS(ASCP)
Education Specialist
Instructor in Laboratory Medicine and Pathology
Mayo Clinic College of Medicine and Science

MCL Education

This post was developed by our Education and Technical Publications Team.