Period Acid Schiff – Fungus

  • Tech Only CPT
  • Tech Pro CPT
  • PowerPath Code
  • Schedule Monday - Friday
  • Turn Around Time Within 1-2 business days of receipt
  • Methodology Special Stains

Specimen Requirements

Formalin-fixed, paraffin embedded tissue block or cell block, or 1 unstained charged slide for each test requested plus 3-4 additional unstained slides cut at 4 microns. Adequate space on each slide for control tissue is required.

Diagnostic Utility

PAS staining is mainly used for staining structures containing a high proportion of carbohydrates. It can also identify fungal infections.