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The field of oncology is dedicated to the study of tumors and cancers, which occur when cells in the body start to multiply uncontrollably. Oncology is a specialized branch of medicine that focuses on diagnosing and treating cancer, including medical oncology, radiation oncology, and surgical oncology.

Cancer treatment involves a range of medical interventions aimed at treating and managing cancer. These interventions may include surgery, chemotherapy, radiation therapy, immunotherapy, targeted therapy, hormone therapy, stem cell transplant, precision medicine, and palliative care.

The field of oncology is centered on the study of tumors and cancers. Each cell in the body functions within a carefully controlled system that governs its growth, development, replication, and eventual death.

Cancer develops when normal cells begin to divide uncontrollably. In some cases, these cancerous cells can spread to other tissues in the body. The onset of cancer involves genetic changes that cause abnormal growth and excessive multiplication of one or a few cells, eventually forming a mass known as a tumor.