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APCD79A
CD79A / MB1, IMMUNOHISTOCHEMISTRY STAIN

Test Code APCD79a 
Test CD79a / MB1, IMMUNOHISTOCHEMISTRY STAIN 
Description CD79a is a B-cell marker which appears early in B-cell maturation at the pre-B cell stage and persists until the plasma cell stage, where it is found as an intracellular component, The CD79a antibody is often used to complement CD20, and stains B-cell lymphomas and acute leukemias of precursor B-cell type. It also detects plasma cell myeloma and may stain acute promyelocytic leukemia (FAB-M3), but rarely other myeloid leukemias.

NOTE: This test is usually ordered in conjunction with a pathology consultation. The pathology professional component will be billed separately by the consulting pathologist. 

Specimen Formalin-fixed or paraffin-embedded tissue specimen. 
Reference Values An interpretive report will be issued. 
Analytic Time 2 Days 
Day(s) Test Set Up Monday through Friday 
CPT Code(s) 88342