Can radiotherapy shrink tumors?

Radiotherapy generally refers to radiation therapy. Radiation therapy for tumors is a localized treatment modality that uses ionizing radiation to treat cancer. So, can radiotherapy shrink tumors? Below, we address this question.

Can radiotherapy shrink tumors?

Radiotherapy is a critical component of cancer treatment. In many cases, tumors respond significantly to radiotherapy—often shrinking markedly, and sometimes even achieving complete remission or cure. Besides radiotherapy, other anti-tumor treatment modalities include surgery, chemotherapy, molecular targeted therapy, and immune checkpoint inhibitor therapy.

Therefore, following diagnosis of certain malignant tumors, treatment decisions must be individualized based on the patient’s specific clinical condition, with selection of an appropriate, evidence-based therapeutic strategy. For example, in patients newly diagnosed with esophageal cancer who remain eligible for surgical resection, timely, standardized curative-intent surgery is strongly recommended. If high-risk factors for recurrence are present postoperatively, adjuvant radiotherapy and/or chemotherapy should also be actively considered to further control disease progression.

Conversely, some patients with esophageal cancer may no longer be candidates for curative-intent surgery at diagnosis. In such cases, comprehensive treatment centered on radiotherapy is recommended, aiming to better control disease progression, alleviate symptoms, and improve quality of life.

The above provides an overview of whether radiotherapy can shrink tumors. We hope this information is helpful to you.