Full Description
Identifies a nuclear protein expressed in proliferating cells (non-G0 phase). Ki-67 is present during G1, S, G2, and M phases of the cell cycle and absent in resting cells. It is a key marker used to assess tumor proliferation rate and helps determine aggressiveness and prognosis in various cancers.
Methodology
IHC
Specimen Requirements
Tissue Block: Formalin-fixed, paraffin-embedded (FFPE) tumor block preferred. Unstained Slides: Recommended 2 charged slides per stain requested (minimum of 1 slide per stain), baked or unbaked. Fixation: Tissue must be fixed in 10% neutral buffered formalin for 6–72 hours.
Storage and Transportation
Use cold pack for transport. Make sure cold pack is not indirect contact with specimen.
Turnaround Time
24 Hrs
CPT Codes
88342x1 or 88341x1