Testing the tissue (pathology)

Once tissue is removed from the endometrium, a pathologist looks at it under a microscope to see if cancer cells are present. If cancer cells are present, the cells will be studied to learn more about the cancer and assign a grade of 1 to 3. Grade 1 refers to a well-differentiated tumor that is less aggressive. Grade 3 refers to a poorly differentiated tumor that may act aggressively. Read more about grading in the section on treatment.

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