IHC

Keratin 5 (CK5)

Identifies squamous and transitional epithelia, mesothelium, and ductal cells, as well as their corresponding carcinomas. Basal cells in complex epithelia, such as normal prostate glands, typically express CK5, and some nonsquamous carcinomas may also show positivity.

Synonyms

Cytokeratin 5, CK5

Full Description

Identifies squamous and transitional epithelia, mesothelium, and ductal cells, as well as their corresponding carcinomas. Basal cells in complex epithelia, such as normal prostate glands, typically express CK5, and some nonsquamous carcinomas may also show positivity.

Methodology

IHC

Specimen Requirements

Formalin-fixed, paraffin-embedded (FFPE) tissue block or cell block - OR - 3 unstained slides for each test requested plus 1-2 additional unstained slides cut at 4µm

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