Acts as a marker for colorectal/appendiceal carcinomas, tumors showing osteoblastic differentiation such as osteosarcoma, and renal/urothelial tumors. It stains colonic and osteogenic cells and their neoplasms and is a useful marker for the workup of carcionoma of unknown primary.
A formalin-fixed, paraffin-embedded (FFPE) tissue block is preferred specimen typeorOne (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 orderedBlock and slide identifiers should be clearly written and match exactly with the specimen ID and specimen labeling as noted on the requisition.
Use cold pack for transport. Make sure cold pack is not in direct contact with specimen.