Test Name: GMS

Methodology: Special Stains

Test Description

Grocott’s Methenamine Silver (GMS) Stain Kit is intended to identify fungal organisms and Pneumocystis jiroveci (formerly known as carinii) in tissue sections on the Artisan™ Link and Artisan™ Link Pro Staining Systems. Fungi and Pneumocystis jiroveci are stained black while other tissue elements are stained green. This stain is not recommended for cytology specimens.

Specimen Requirements

A formalin-fixed, paraffin-embedded (FFPE) tissue block is preferred specimen type or one (1) unbaked, unstained slide cut at 4-5 microns for H&E staining (required) and two to three (2-3) positively charged unstained slides cut at 3-4 microns for each test/antibody ordered.

Storage and Transport

Use cold pack during transport of paraffin blocks and unstained slides. Cold pack should not be placed in direct contact with the specimen during shipping

Specimen Rejection Criteria

Click here to reference the specimen rejection criteria.

Turn Around Time (TAT): 2-3 Days

CPT Codes*: 88312

*The CPT codes provided with our Test Descriptions are based on AMA guidelines and are for informational purposes only. Correct CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed.