[Stereotactic ablative body radiotherapy (SABRT) for locally advanced pancreatic cancer. Case report and review of literature]. / Lokálisan kiterjedt hasnyálmirigy-daganatos beteg sztereotaxiás ablatív sugárkezelése (SABRT): esetismertetés és irodalmi áttekintés.

ABSTRACT

Pancreatic cancer has one of the worst outcomes among malignant tumors. At the time of diagnosis only 20% of the cases are resectable and 30-50% are locally advanced, when curative intervention cannot be performed. After resection local relapse occurs in 20-60%, and in 30% it is the reason of death. This latter highlights the importance of local control. However, there have been no convincing results with conformal radiation therapy and radiochemotherapy yet. Adjuvant radiochemotherapy has been settled into the routine in the US, but not in Europe and Asia and only sporadic data are available about neoadjuvant radiotherapy. Based on the result of recent studies, conformal radiation therapy does not seem to become part of the standard treatment of locally advanced disease. Radiation resistance, long treatment time and incompatibility with the most advanced chemotherapy regimens may make conformal radiotherapy ineffective. Stereotactic ablative body radiotherapy (SABRT) when a limited target volume is irradiated in few fractions, with high precision and high biological effective dose, is ablative for the tumor and could be a possible solution for this issue. In our report, we describe to our knowledge the first SABRT for locally advanced pancreatic cancer in Hungary and give a short literature review.