Prognosis of
pancreatic cancer is still remarkably poor, even if complete resection was performed by enlarged abscission. On the other hand,
carbon-ion beam
therapy is giving good results in some selected
carcinoma such as
small cell lung cancer,
prostate cancer,
uterus cancer, and soft tissue/bone
tumor. In this report, we discuss four patients with
pancreatic cancer treated by surgical
pancreatectomy combined with preoperative
carbon-ion beam irradiation. All patients were irradiated with 48 GyE
carbon-
iron beam by HIMAC (Heavy Ion Medical Accelerator in Chiba) to the pancreatic area including lymph nodes and nerve plexus. Severe
cholangitis, as the postoperative complication, had occurred in one of the patients. However, there was no complication or disorder caused by
carbon-
iron radiation. All four patients are alive now, but two of them developed
tumor recurrence, one with hepatic
metastasis and the other with peritoneal dissemination. Surgical treatment for
pancreatic cancer combined with preoperative
carbon-ion irradiation is expected as a promising cure, but it is necessary to examine more cases in the future to evaluate the clinical outcome of this treatment.