Purpose: Gallbladder carcinomas were usually considered to be radioresistant. So far, the role of radiotherapy has not been adequately evaluated. The aim of this report is to assess the value of radiotherapy in carcinoma of the gallbladder.
Methods: We reviewed publications concerning the role of radiation therapy in gallbladder carcinoma from 1974 to 2000. External radiation therapy, intraoperative radiation therapy, and brachytherapy were evaluated in two different groups: one group of patients underwent surgery, with apparently complete resection of the tumor; and another group underwent palliative treatment.
Results: Local control of the tumor and reduction of tumor size were reported in several publications. Collected data suggested a slight improvement in survival after adjuvant or palliative radiotherapy. The best benefit was obtained in tumors resected with only microscopic residual tissue. If possible an intraoperative "boost" (15 Gy) is recommended on the gross lesion, residual lesion, or tumor bed. Additional postoperative external radiotherapy (45-50 Gy) must be delivered.
Conclusion: Radiotherapy appears to be a safe procedure that slightly improves the survival time of patients treated for gallbladder carcinoma. Further trials are needed to assess the role of combined radiotherapy and chemotherapy.