CD56

Identifies neural cell adhesion molecules expressed on NK cells, subsets of activated T cells, and most neuroectodermal tissues and tumors. Aberrant expression occurs in some acute myeloid leukemias, myelodysplastic syndromes, multiple myelomas, and neuroendocrine carcinomas.

Synonyms
Turnaround Time
24 Hrs
Methodology
IHC
Specimen Requirements

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

Unstained Slides: Recommended 2 charged 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.

Storage and Transportation

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

CPT Codes
88342x1 or 88341x1