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Transthyretin (Pre Albumin) pin


Transthyretin (Pre Albumin)

Methodology: IHC

Clinical Significance:
Transthyretin identifies a serum protein produced by the liver and choroid plexus. It forms the basis of one subtype of amyloid, identification of which, and distinction from immunoglobulin light chain derived amyloids, can be made by immunohistochemistry. Transthyretin can also serve as a marker of choroid plexus tumors. Subcellular Localization: Cytoplasmic and in extracellular spaces


Disease State: Amyloid Type Analysis

CPT Code(s): 88342 or 88341 (reference only; CPTs may vary)

Turnaround Time: Within 1-2 business days of receipt

Schedule: Monday - Friday

Specimen Requirements:
• Formalin-fixed, paraffin-embedded (FFPE) tissue block or cell block - OR - • 1 unstained slide for each test requested plus 3-4 additional unstained slides cut at 4µm