TTF1

Synonyms

Thyroid Transcirption Factor-1

  • Tech Only CPT 88342.TC
  • Tech Pro CPT
  • PowerPath Code TTF
  • Schedule Monday - 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

Primarily used to differentiate pulmonary from extra-pulmonary adenocarcinoma or pulmonary adenocarcinoma from mesothelioma. Also used to identify extra-pulmonary small cell carcinoma (vs. Merkel cell carcinoma) and to identify pulmonary origin of well-differentiated endocrine (carcinoid) tumors.

Vendor

Novocastra