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: Carcinomas of Unknown Primary

CPT Code(s): 88342 or 88341. The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

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