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APCD31
CD31, IMMUNOHISTOCHEMISTRY STAIN

Test Code APCD31 
Test CD31, IMMUNOHISTOCHEMISTRY STAIN 
Description CD31 is expressed by stem cells of the hematopoeitic system, platelets, and plasma cells (detected in frozen sections and smears). In paraffin-embedded tissues, the CD31 antibody labels normal and neoplastic endothelial cells. It is useful when judging the extent of vascularization of tumors, and for the demonstration of endothelial cell-derived neoplasms. It reacts weakly with mantle zone B-cells, peripheral T-cells and neutrophils.

NOTE: This test is usually ordered in conjunction with a pathology consultation. The pathology professional component will be billed separately by the consulting pathologist. 

Specimen Formalin-fixed or paraffin-embedded tissue specimen. 
Reference Values An interpretive report will be issued. 
Analytic Time 2 Days 
Day(s) Test Set Up Monday through Friday 
CPT Code(s) 88342