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CD2 pin

IHC

CD2

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

Organ:

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

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