Classifying disease based on stage at diagnosis helps to determine appropriate treatment and prognosis. The best treatment currently known for a cancer, based on results of past research. Tamoxifen An anti-estrogen used in cancer therapy. The group that receives the new treatment being tested during a study. A new and spontaneous growth of tissue that forms an abnormal mass.
Tumors can be benign or malignant.
Tumor Grade A classification of tumor size. Coalition of National Cancer Cooperative Groups, Inc.