IgG4
- Tech Only CPT 88342.TC
- Tech Pro CPT
- PowerPath Code IgG4
- Schedule Monday to Friday
- Turn Around Time Within 1-2 business days of receipt
- Methodology IHC
Specimen Requirements
Formalin-fixed, paraffin embedded tissue block or cell block, or 1 unstained charged slide for each test requested plus 3-4 additional unstained slides cut at 4 microns. Adequate space on each slide for control tissue is required.
Diagnostic Utility
This antibody identifies IgG4-positive plasma cells, and is used in the diagnosis of IgG4-related sclerosing disease. It is essential to determine the percentage of IgG4-positive plasma cells among all IgG-positive plasma cells, and thus, a concomitant immunostain for IgG must also be performed.
Vendor
ABD serotec