Methodology: IHC

Clinical Significance:
CD79a is a cytoplasmic antigen expressed at all stages of B cell maturation, from lymphoblasts through plasma cells. CD79a expression is decreased in most cases of classical Hodgkin lymphoma, and in a subset of non-Hodgkin B cell lymphomas. Subcellular Localization: Membranous

Organ:

Disease State: B Cell Non-Hodgkin Lymphoma (not otherwise classified)

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