Mark D. Duncan, MD

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Dr. Duncan specializes in gastrointestinal surgical oncology, including surgery of the esophagus, stomach, intestine, colon and rectum, gallbladder and pancreas, adrenal and retroperitoneal sarcoma.  He has national and international expertise in gastric cancer and hereditary gastric cancer including CDH-1.  He wrote the Johns Hopkins Patient Guide for Cancer of the Stomach and Esophagus.   Dr. Duncan gives lectures and presentations nationally and internationally on Gastric and GI cancer surgery and works with Johns Hopkins International on cancer programs and centers overseas.