The rationale for using intraoperative irradiation (IORT) is based on the realization that tolerable doses of eternal beam radiation are often insufficient to achieve control of locally advanced malignancies. In these instances, the IORT component of treatment becomes the optimal conformal technique of irradiation, since dose-limiting organs or structures can either be surgically displaced or protected by placement of lead shielding. This fully revised and expanded second edition is of interest to those with intraoperative electron (IOERT) capabilities, high-dose-rate brachytherapy (HDR-IORT)...