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