CD31 by IHC

Alphabetical Test listing

CD31 by IHC-12376 - Technical only, 12379 - Technical & interpretation

CD31 by IHC
12376 - Technical only, 12379 - Technical & interpretation
Anti-human endothelial cell

All IHC stains will include a positive control tissue

  • CD31 is a very sensitive and specific marker for endothelial differentiation, and is probably the first choice for vascular markers in studying benign and malignant vascular tumors
  • CD31 reacts weakly with mantle zone B cells, peripheral T cells, and neutrophils
  • In cryostat sections and blood smears, CD31 also labels megakaryocytes, platelets, and some plasma cells

Submit a formalin-fixed, paraffin-embedded tissue


Formalin-fixed, paraffin-embedded (FFPE) tissue block


FFPE tissue section mounted on a charged, unstained slide


Ambient (preferred)

  • Unlabeled/mislabeled block
  • Insufficient tissue
  • Slides broken beyond repair
AHL - Immunohistochemistry
Mo - Fr
1 - 2 days

Immunohistochemical staining and microscopic examination


If requested, an interpretive report will be provided



  • Reacts with a glycoprotein found in endothelial cells and platelets

Staining pattern

  • Cytoplasmic and cell membrane-based staining


  1. De Young and Wick, et. al.: CD31: An Immunospecific Marker for Endothelial Differentiation in Human Neoplasms; Appl. Immunohistochem. 1:97-100, 1993.
  2. Longacre et. al.: CD31: A New Marker for Vascular Neoplasia; Advances in Anat. Pathol. 1:16-20, 1994.
88342 - 1st stain
88341 - each additional stain