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APP63
P63, IMMUNOHISTOCHEMISTRY STAIN

Test Code APP63 
Test P63, IMMUNOHISTOCHEMISTRY STAIN 
Description P63 is present in a variety of benign epithelial tissues. Nuclear staining is present within the myoepithelial cells of the breast and in basal cells of the prostate. Staining is absent or diminished in adenocarcinoma of the breast and prostate (as well as other cancers such as bladder carcinoma.) P63 is useful in distinguishing between benign and malignant neoplasms.

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 provided. 
Analytic Time 2 Days 
Day(s) Test Set Up Monday through Friday 
CPT Code(s) 88342