Keratin 17 pin

IHC

Keratin 17

Alternate Test Names:
Cytokeratin 17
CK17

Methodology: IHC

Clinical Significance:
Identifies a subset of epithelia and carcinomas. CK17 expression can help identify primary carcinomas of the pancreatobiliary tract, distinguishing them from ovarian mucinous adenocarcinomas and carcinomas of the stomach, among others.

Subcellular Localization: Cytoplasmic

Organ: Ovary, Pancreas

Disease State: Carcinomas of Unknown Primary

CPT Code(s): 88342 or 88341

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

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