Chromogranin A
Use
Chromogranin is present in several elements of the diffuse neuroendocrine system, including anterior pituitary, thyroid C cells, parathyroid chief cells, pancreatic islet cells, intestinal enterochromaffin cells and tumors derived from these cells. Immunoreactivity is also seen in thymus, spleen, lymph nodes, fetal liver, neurons, rods and cones, submandibular gland, and central nervous system. This marker is useful in evaluating neuroendocrine tumors.
Special Instructions
Not provided.
Limitations
Not provided.
New York Approved
Methodology
Immunoassay (IHC)
Biomarkers
Chromogranin A
Protein
Result Turnaround Time
24 hours
Related Documents
For more information, please review the documents below
Specimen
Tissue (FFPE)
Volume
Not provided
Minimum Volume
Not provided
Collection Instructions
Formalin-fixed, paraffin-embedded (FFPE) tissue block is preferred, or one unbaked, unstained H&E slide (required) plus two to three positively charged unstained slides (4–5 microns) for each test/antibody ordered. Block and slide identifiers should match those on requisition.
Storage Instructions
Use cold pack for transport, cold pack not in direct contact with specimen.