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CD2 pin



Methodology: IHC

Clinical Significance:
CD2 is a cell surface-associated protein expressed in both mature and immature T cells, as well as natural killer (NK) cells. CD2 is aberrantly decreased in a subset of T cell and natural killer cell neoplasms. Rare cases of acute myeloid leukemia show aberrant coexpression of CD2 on the leukemic blasts. Subcellular Localization: Membranous


Disease State: Anaplastic Large Cell Lymphoma (Systemic or Cutaneous)

CPT Code(s): 88342 or 88341. The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

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