Methodology
Immunohistochemistry (IHC)
Test Description
Mesothelin is a 40kDa cell surface glycoprotein selectively expressed by mesothelial cells and malignant mesotheliomas, as well as by non-mucinous ovarian carcinomas, breast carcinomas, pancreatic carcinomas, and squamous tumors of the esophagus and cervix.
Specimen Requirements
- A formalin-fixed, paraffin-embedded (FFPE) tissue block is preferred specimen type
or - One (1) unbaked, unstained slide for H&E staining (required) and two to three (2-3) positively charged unstained slides (all cut at 4-5 microns) for each test/antibody ordered
- Block and slide identifiers should be clearly written and match exactly with the specimen ID and specimen labeling as noted on the requisition.
Storage and Transportation
Use cold pack for transport. Make sure cold pack is not in direct contact with specimen.
CPT Code(s)*
88342 x 1 or 88341 x 1
New York Approved
Yes
Level of Service
Stain Only
Turnaround Time
24 hours