Methodology: IHC

Clinical Significance:
Identifies: A transmembrane protein that is a specific marker of transitional cell epithelium and tumors. While highly specific, uroplakin is a marker of low sensitivity for urothelial carcinomas. Subcellular Localization: Membranous

Organ: Genitourinary Tumors

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