Calcitonin

Marks thyroid C cells and medullary thyroid carcinoma (MTC). Useful for detecting early or microscopic MTC, distinguishing MTC from anaplastic carcinoma or lymphoma, differentiating MTC with unusual patterns from follicular or papillary thyroid neoplasms, and identifying C-cell hyperplasia associated with hypercalcemia.

Synonyms

Turnaround Time

24 hrs

Methodology

IHC

Specimen Requirements

Tissue Block: Formalin-fixed, paraffin-embedded (FFPE) tumor block preferred.

Unstained Slides: Recommended 2charged slides per stain requested (minimum of 1 slide per stain),baked or unbaked.

Fixation: Tissue must be fixed in 10% neutral buffered formalin for 6–72 hours.

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Storage and Transportation

Use cold pack for transport. Make sure cold pack is not in direct contact with specimen.

CPT Codes

88342x1 or 88341x1