• Tech Only CPT 88342.TC
  • Tech Pro CPT
  • PowerPath Code CD5
  • Schedule Monday - Friday
  • Turn Around Time Within 1-2 business days of receipt
  • Methodology IHC

Specimen Requirements

Formalin-fixed, paraffin embedded tissue block or cell block, or 1 unstained charged slide for each test requested plus 3-4 additional unstained slides cut at 4 microns. Adequate space on each slide for control tissue is required.

Diagnostic Utility

CD5 is found in most thymocytes and immature and mature T-cells. It is aberrantly expressed in some B-cell neoplasms chronic lymphocytic leukemia/small lymphocytic lymphoma, mantel cell lymphoma and Hairy cell leukemia. It is expressed in most T-cell malignancies, most thymic carcinomas but not in spindle cell thymomas.