Alternate Test Names:
Ki67; MIB-1

Methodology: IHC

Clinical Significance:
Identifies: The Ki-67 defined antigen, a nuclear protein expressed in proliferating (i.e., non-G0) cells. Used as a quantitative marker of cell proliferation in tumors.

Subcellular Localization: Nuclear

Organ: Breast, Lung, OB/GYN

Disease State: Breast Cancer, Molar Pregnancy, Non Small Cell Lung Carcinoma (NSCLC)

CPT Code(s): 88360 (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