CD99
Synonyms
MIC gene products, E2
- Tech Only CPT
- Tech Pro CPT
- PowerPath Code CD99
- Schedule Monday - Friday
- Turn Around Time Within 1-2 business days of receipt
- Disease State Spindle Cell Tumors / Sarcoma Subtyping
- 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
CD99 antigen is strongly expressed in Ewing's sarcoma/primitive neuroectodermal tumors (PNET), and lymphoblastic leukemia/lymphoma.