[Delayed effects of oncological therapy].

Due to therapy-associated improvements in survival rates, delayed effects of cancer are a rapidly increasing but as yet only poorly recognized problem. These delayed sequelae, which by definition occur years after the primary disease, include secondary tumors and many non-oncological internal medical problems. Little attention has so far been paid to the cardiovascular, gastrointestinal, renal and endocrinal delayed side effects and must be specifically addressed due to the often slowly progressing symptoms.