Who is most likely to diagnose and treat a patient's cancer?

The oncologist is the medical professional most likely to diagnose and treat a patient's cancer. Oncologists are specifically trained in the diagnosis, treatment, and management of cancer. They have extensive knowledge of various treatment modalities, including chemotherapy, radiation therapy, targeted therapies, and immunotherapy. In addition, oncologists participate in multidisciplinary teams, collaborating with other specialists to provide comprehensive care tailored to each cancer patient's needs.

While a radiologist plays an important role in imaging studies that help detect cancer, they primarily focus on interpreting imaging results rather than being directly involved in patient treatment. A pathologist is crucial in diagnosing cancer by examining tissue samples under a microscope but does not typically handle ongoing patient care or treatment. A serologist specializes in serum and blood tests, often related to infections or immune responses, which does not directly relate to cancer diagnosis or treatment. Thus, the oncologist stands out as the specialist dedicated to the holistic approach required to manage cancer effectively.