ISSN 2398-2950      

Staining techniques: Periodic acid/schiff


Synonym(s): PAS


  • Stain reacts with structures containing a carbohydrate component (1:2 glucol grouping).
  • Periodic acid is the oxidant, others can be used then results may vary slightly.


  • Identify fungi, yeast.


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Further Reading


Refereed papers

Other sources of information

  • Gross T L et al (1992) Veterinary Dermatopathology. A macroscopic and microscopic evaluation of canine and feline Skin Disease. Mosby. p 185.

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