Ask the Experts > Gastrointestinal Cancers

OncoLink "Ask the Experts" About Gastrointestinal Cancers

Welcome to the OncoLink "Ask the Experts" section. Here you can send a question to one of our panel of medical experts online. If your question is chosen, your answer will be posted on OncoLink in the hope that it will be useful to others as well.

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Bruce Giantonio, MD
Bruce Giantonio, MD is an Assistant Professor of Medicine in the Hematology-Oncology division at the University of Pennsylvania. He is also the Executive Officer for the Eastern Cooperative Oncology Group. His clinical expertise lies in the area of colon cancer treatment. His research interests include the use targeted therapies for gastrointestinal malignancies and new drug development.

James M. Metz, MD
James M. Metz, MD is Editor-in-Chief of OncoLink and Assistant Professor of Radiation Oncology at the Hospital of the University of Pennsylvania. He specializes in the use of radiation for the treatment of gastrointestinal cancers. His research interests include the clinical applications of photodynamic therapy (PDT), the utilization of complementary and alternative medications by cancer patients, and use of the Internet to provide cancer related information.

Jill Stopfer, MS, CGC
Jill Stopfer, MS, CGC is a certified genetic counselor who works with families at increased risk for cancer due to hereditary factors. She was one of the first genetic counselors in the country to offer cancer genetic counseling, and was one of the founding members of the Cancer Risk Evaluation Program at Penn in 1994. She works with individuals with genetic risk for breast, ovarian, colon, pancreatic and other cancers.

Katrina Claghorn, MS, RD
Katrina Claghorn, MS, RD is a registered dietitian at the Abramson Cancer Center of the University of Pennsylvania Before specializing in oncology Katrina worked in medical nutrition and with patients with eating disorders. Since 1995 she has specialized in oncology nutrition. She now works as an outpatient dietitian in her role as the nutritionist for the Abramson Cancer Center of the University of Pennsylvania. She is also a section editor on nutrition and diet for OncoLink.

Peter J. O'Dwyer, MD
Peter J. O'Dwyer, MD is a Professor of Medicine in the Hematology-Oncology division at the University of Pennsylvania. He serves as the Program Leader of the Chemoprevention Program at the Abramson Cancer Center at the University of Pennsylvania. His clinical expertise is in the area of GI cancer with special expertise in colon/pancreas cancer and new therapies in early clinical trials. His research interests lie in new therapy development for cancer and cancer pharmacologies.

Weijing Sun, MD
Weijing Sun, MD is Assistant Professor of Medicine at the University of Pennsylvania, the Director of Upper GI and Pancreatic-biliary-hepatic Cancer Group and the Associate Director of the GI Cancer Program, is an expert in gastrointestinal cancers.