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APEMA
EPITHELIAL MEMBRANE ANTIGEN (EMA), IMMUNOHISTOCHEMISTRY STAIN

Test Code APEMA 
Test EPITHELIAL MEMBRANE ANTIGEN (EMA), IMMUNOHISTOCHEMISTRY STAIN 
Description This antigen is particularly helpful in immunohistochemically assessing large-cell undifferentiated malignant neoplasms, when used in conjunction with antisera to leukocyte common antigen and S-100 protein, "Leukocyte Common Antigen (LCA), Immunoperoxidase Stain" and see "S-100 Protein, Immunoperoxidase Stain."

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