Alternative Name
Cyclooxygenase-2
Methodology
Immunohistochemistry (IHC)
Test Description
Cyclooxygenase-2 (COX-2) plays a role in tumorigenesis through stimulating epithelial cell proliferation, inhibiting apoptosis, stimulating angiogenesis, enhancing cell invasiveness, mediating immune suppression, and by increasing the production of mutagens. COX-2 is expressed in breast cancer, transitional cell carcinoma of the bladder, high-grade endometrioid carcinoma, and ovarian cancer. Overexpression of COX-2 is associated with poor prognosis in cervical cancers after radiation and concurrent chemotherapy.
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)*
88342x1 or 88341x1; 88360x1
Turnaround Time
Global: 48 hours, Tech-Only (stain only): 24 hours
Level of Service
Global
Stain Only

*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.