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PTEN pin



Methodology: IHC

Clinical Significance:
Identifies: Phosphatase and tensin homolog, a tumor suppressor that is mutated, and expression of which is lost, in a number of human tumors. Loss of expression of PTEN may be a prognostic and predictive biomarker in some of these tumors. Subcellular Localization: Cytoplasmic


Disease State:

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