What is S. Chromogranin test. Where I can do that any diagnostic center in Kharadi, Pune area. What is Chromogranin A test. Can we do Chromogranin A test instead of S. Chromogranin test. My Doctor suggest to do S.Chromogranin test but i did enquiry around 25 diagnostic centers in kharadi but no one is doing S. Chromogranin test. They are offering Chromogranin A or Chromogranin plasma test. Please helpw