Alternate Test Names:
Brst2

Methodology: IHC

Clinical Significance:
Identifies: Breast carcinoma, sweat gland carcinoma, and a subset of salivary gland carcinoma. Can also be present in 10% of primary lung adenocarcinoma.

Subcellular Localization: Cytoplasmic, granular

Organ: Breast

Disease State: Breast Cancer, Carcinomas of Unknown Primary

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