PEIR Digital Library

Welcome to the Pathology Education Informational Resource (PEIR) Digital Library, a multidisciplinary public access image database for use in medical education.

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HISTOLOGY: MICROBIOLOGY: MOUTH: Opportunistic diseases. Cryptococcus neoformans in section from ulcer of hard palate.; GMS Stain shows cell walls of yeast surrounded by clear, non-stained capsules. Contributed by Michael Glick, D.M.D., University of Pennsylvania, PA for the CDC. L-175(3): 24