A:The histopathology report indicates the grade and the stage of the carcinoma or cancer in the right kidney tissue. The staging guides the first line of treatment plan, the prognosis and also estimate the chances of any recurrence of the cancer after the initial treatment. Removal of the affected kidney as in your case followed by chemotherapy if any and close monitoring for any chances of recurrence is the standard line of care. You need to continue closely follow up with your Oncologist. Lastly, since you are diabetic, it is important to follow a diet rich in protein and low in carbohydrate and fat in addition to increased outdoor exercise and healthy lifestyle.