The article presents a complex clinical case of a patient with primary multiple cancer, with lesions of the prostate, bladder, ureter, stomach, regional and distant lymph nodes. Initially, it was assumed that there were four localizations of cancer, but after performing the operation and conducting thorough morphological and immunohistochemical studies, it became possible to prove that only two cancer localizations were present, namely prostate cancer and stomach cancer. The implementation of complex palliative (salvage) surgical interventions as the first stage of the complex treatment of prostate and bladder cancer, as well as the performance of simultaneous operations, can improve the prognosis of patient survival.