Recurrence of prostate cancer of rare location: magnetic resonance diagnosis and treatment. Clinical case

Prostate cancer (PCa) is the second most common cancer in the world, with a steady increase in incidence every year. Regardless of the chosen treatment method for patients with localized PCa, the development of local relapse occurs in at least 15 % of cases. The key point in monitoring patients with PCa today is dynamic monitoring of prostate-specific antigen levels. When biochemical recurrence is detected, the subsequent diagnostic algorithm strategy should be aimed at visualizing the tumor site, which can be local, in the lymph nodes, or metastatic. Multiparametric magnetic resonance imaging can serve as a method for diagnosing and monitoring relapses of PCa located locally or in the lymph nodes of the pelvis. When assessing relapses located in the pelvic area, one should remember possible rare sites of their localization, as demonstrated in our clinical case. The optimal treatment for recurrent PCa is still controversial and requires further study.