This is an academic website developed by professionals involved in the intraoperative electron radiation therapy program at the Hospital General Univeristario Gregorio Marañon (HGUGM, Madrid, Spain) and the Instituto de Investigacion Sanitaria Gregorio Marañon.

Educational materials are oriented to complement with reported data the clinical-case solutions described for advanced training upon the evaluation of imaging studies, IOERT videos/photos and summarized information from patients records.

This website contains +50 case-solutions descriptions of cancer patients treated with IOERT at the Hospital General Universitario Gregorio Marañon (Madrid, Spain) selected from the program activity in the period 2000-2017.