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Spontaneous feline sporotrichosis: A fine structural study

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Abstract

Fine structural details of the parasitic yeastlike phase of Sporothrix schenckii contained in biopsy tissue from a naturally-occurring case of disseminated feline sporotrichosis are described and illustrated by electron microscopy. Both free and phagocytosed fungal cells were observed. The fungal cells were contained within an extracellular, electron transparent vacuolar area which was bounded by a limiting membrane of probable host origin. The yeastlike cells were characterized by a conspicuous layer of osmiophilic microfilaments which occurred along the outermost surface of the cell wall. In many yeastlike cells, scattered, membranebound vacuoles containing electron opaque material were observed in the cytoplasm. Asteroid bodies were not observed.

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Author information

Authors and Affiliations

  1. The Research Service, Veterans Administration Medical Center, 64128, Kansas City, Missouri, USA

    Robert G. Garrison & Karen S. Boyd

  2. The Research Animal Diagnostic and Investigative Laboratory, College of Veterinary Medicine, University of Missouri-Columbia, 65211, Columbia, Missouri, USA

    Ann B. Kier & Joseph E. Wagner

Authors
  1. Robert G. Garrison
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  2. Karen S. Boyd
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  3. Ann B. Kier
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  4. Joseph E. Wagner
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Garrison, R.G., Boyd, K.S., Kier, A.B. et al. Spontaneous feline sporotrichosis: A fine structural study. Mycopathologia 69, 57–62 (1979). https://doi.org/10.1007/BF00428603

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