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Breast Cancer Recurrence Risk After Mastectomy (simple)   Risk Factors Grade of tumor I (6 points) II (12 points) III (18 points) Lymph nodes Negative (6 points) Positive (12 points) Lymphatic or vascular invasion None (4 points) Present (8 points)   Total Criteria Point Count:             Recurrence Risk   16 points : 8.5% 20 points : 12.5%   22 points : 15.8% 26 points : 10% 28 points : 15.5% 32 points : 33% 34 points : 38.5% 38 points : 48%   In this study, 23% of all patients developed a local recurrence.   References O'Rourke S, Galea MH, Morgan D, et. al. Local recurrence after simple mastectomy. Br J Surg. 1994 Mar;81(3):386-389. MedCalc CrossRef: Gail Model (1999 paper) MedCalc CrossRef: Gail Model (1989 paper)     Legal Notices and Disclaimer   All information contained in and produced by the MedCalc 3000 system is provided for educational purposes only. This information should not be used for the diagnosis or treatment of any health problem or disease. THIS INFORMATION IS NOT INTENDED TO REPLACE CLINICAL JUDGMENT OR GUIDE INDIVIDUAL PATIENT CARE IN ANY MANNER. Click here for full notice and disclaimer.   MedCalc 3000 is Copyright © 1998-2010 Foundation Internet Services, LLC    [Build 240921 v9.1]