CD31 pin

IHC

CD31

Alternate Test Names:
PECAM-1

Methodology: IHC

Clinical Significance:
Identifies PECAM-1, a cell surface adhesion molecule expressed on the surface of endothelial cells and is an excellent marker of vascular neoplasms, e.g., angiosarcoma. CD31 can also be expressed by platelets, macrophages, and plasma cells.

Subcellular Localization: Membranous

Organ:

Disease State: Large Cell Undifferentiated Malignant Neoplams, Spindle Cell Tumors / Sarcoma Subtyping

CPT Code(s): 88342 or 88341 (reference only; CPTs may vary)

Turnaround Time: Within 1-2 business days of receipt

Schedule: Monday - Friday

Specimen Requirements:
• Formalin-fixed, paraffin-embedded (FFPE) tissue block or cell block - OR -
• 1 unstained slide for each test requested plus 3-4 additional unstained slides cut at 4µm

Tech Only