A new study shows that high-dose “ablative” radiation can greatly improve outcomes for patients with large bile duct cancers, including tumors bigger than 10 cm.
Researchers found that patients who received this precise, high-dose radiation along with chemotherapy lived much longer—about 28.7 months on average—compared to 11.9 months for those treated with chemotherapy alone. The radiation group also had far lower rates of tumor-related liver failure and did not experience any life-threatening side effects.
For years, very large liver tumors were not treated with radiation because of concerns about damaging healthy tissue. However, advances in modern radiation technology now allow doctors to target tumors more accurately while protecting the surrounding liver. The study also found that these large tumors behave biologically like smaller ones, meaning they can respond just as well to aggressive treatment.
Overall, the findings suggest that tumor size should no longer automatically rule out radiation therapy, offering a promising new option for patients who previously had limited treatment choices.