VIPoma other diagnostic studies

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Madhu Sigdel M.B.B.S.[2]

Overview

Other diagnostic studies for VIPoma include immunohistochemical staining test, which demonstrates staining for markers such as Chromogranin A, synaptophysin, cytokeratin, Ki-67, NSE, PGP 9.5.

Other Diagnostic Studies

• Immunohistochemical staining may be helpful in the diagnosis of VIPoma. Findings suggestive of VIPoma include positive histochemical staining for:
  • Chromogranin A
  • synaptophysin
  • Ki-67 (indicates the percentage of neoplastic cells immunolabeled for the marker of proliferation Ki67)
  • NSE (neuron-specific enolase)
  • PGP 9.5