Oncology at SRMS is one of the largest, most comprehensive cancer diagnosis and treatment programs in the world. Each year thousands of people who have any of more than 200 kinds of cancer seek treatment at SRMS from oncologists and other cancer experts.Oncologists specialize in managing drug treatments for people with early and advanced cancers that affect the organs, muscles, bones and connective tissue. However, people with some early-stage cancers may be treated with surgery or radiation therapy alone and may not need the care of an oncologist.