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A pancreatic hormone produced by alpha cells of the islets of Langerhans. Immunohistochemical detection of glucagon is useful for identifying glucagon-producing tumors (glucagonomas) and evaluating disorders associated with hyperglucagonemia or glucagon-induced hypoglycemia.
Formalin-fixed, paraffin-embedded (FFPE) tissue block or cell block - OR - 3 unstained slides for each test requested plus 1-2 additional unstained slides cut at 4µm
Use cold pack for transport. Make sure cold pack is not indirect contact with specimen.