Notable pediatric radiation oncologist Robert B. Marcus Jr., M.D. joins the University of Florida Proton Therapy Institute

June 1, 2008

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Jacksonville, Fla. (June 24, 2008) - The University of Florida Proton Therapy Institute is proud to announce the addition of distinguished pediatric radiation oncologist Robert B. Marcus Jr., M.D., to its staff of physicians in Jacksonville, Fla. With more than 30 years in radiation oncology, he is well recognized for his extensive knowledge and work in pediatric cancer.

"We are very pleased to add another leader in the field of radiation oncology to our team of skilled and knowledgeable physicians," said Dr. Nancy Mendenhall, UF Proton Therapy Institute's medical director. "Cancer in children is a top priority at UF Proton Therapy Institute. Dr. Marcus' particular expertise will be an important addition to the Institute."

In addition to his work in pediatric radiation oncology, Marcus is known for his research and special interest in Ewing's sarcoma, soft tissue sarcoma, bone and soft tissue malignancies and central nervous system tumors. With more than 100 works published, he is a contributor to medical journals including American Journal of Clinical OncologyInternational Journal of Radiation Oncology Biology Physics, and Clinical Orthopedics and Related Research. Marcus is also recognized in noteworthy publications such as The Best Doctors in America and Who's Who in America and presents in both national and international medical conferences. He has held leadership roles in radiation oncology associations including the Florida Society of Clinical Oncologists where he served as the organization's president. He also directed the radiation oncology committee for the Pediatric Oncology Group for eight years and the Children's Oncology Group for five years.

Using protons to combat tumors may substantially reduce the amount of normal tissue exposed to radiation. As a result, many patients experience fewer side effects making it ideal for treating cancer in children. "Proton therapy is a wonderful alternative to conventional therapy," said Marcus. "It offers important radiation treatment with less exposure to normal tissue that surrounds a tumor." Conventional radiation is a powerful tool that increases the likelihood of successful cancer treatment. However, it can produce side effects starting from the time the child is treated until 40 years following. Growing tissue in children is particularly susceptible to radiation therapy. For this reason, when using radiation it is critical to avoid as much normal tissue in children as possible which is why proton therapy, which is more direct, is a beneficial treatment option.

The University of Florida Proton Therapy Institute is a nonprofit 501(c)3 organization affiliated with the UF College of Medicine and the UF Shands Cancer Center, national leaders in cancer treatment and research. UF Proton Therapy Institute is dedicated to delivering state-of-the-art cancer treatment and strives to set new standards for treating and curing the disease. The cancer treatment facility houses both conventional radiation and proton therapy and delivers proton therapy to 100 patients a day. For more information about UF Proton Therapy Institute, please visit, or call toll-free 877-686-6009



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