Test Name: DESMIN

Methodology: IHC

Test Description

Anti-Desmin, clone D33, is of value in the differential diagnosis of tumors of uncertain origin. It can be used in conjunction with the Dako monoclonal antibodies to the other intermediate filament proteins, such as cytokeratin (Code M0821), glial fibrillary acidic protein (Code M0761), neurofilament protein (Code M0762), vimentin (Code M7020) and the monoclonal antibody to leucocyte common antigen (Code M0701).

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*: 88341, 88342, 88360

*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.