Pathology General 8b1a7412 Ca 125 is used for A Follow up of ovarian cancer B Diagnosis of pancreatic cancer C Diagnosis of stomach cancer D Diagnosis of ovarian cancer High-Yield Explanation Harshmohan textbook of pathology 7th edition. ☆ CA 125 is a tumor marker of ovarian cancer. Most commonly used for follow up of ovarian cancer. ☆ pancreas tumor marker CA 19-9.