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GATA-3 pin

IHC

GATA-3

Methodology: IHC

Clinical Significance:
GATA-3 is a zinc finger nuclear transcription factor that is a highly sensitive marker of carcinomas primary to the bladder and breast. GATA-3 is also expressed in a subset of squamous cell carcinomas, skin adnexal tumors, mesotheliomas, and salivary gland tumors, among others (Miettinen M et al. AJSP 38:13-22, 2014).

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