Prostate artery embolization (PAE) has emerged as a new treatment option for patients with symptomatic benign prostatic hyperplasia. The main challenges related to this procedure are navigating arteries with atherosclerosis and anatomical variations, and the potential risk of non-target embolization to pelvic structures due to the presence of collateral shunts and reflux of microparticles. Knowledge of classical vascular anatomy and the most common variations is essential for safe embolization, good clinical practice, and optimal outcomes. The aim of this pictorial essay is to illustrate the pelvic vascular anatomy relevant to PAE in order to provide a practical guide that includes the most common anatomical variants as well as to discuss the technical details related to each.

ResumoIntrodução: Alguns estudos sugerem que o uso de antidepressivos poderia aumentar o risco de câncer. Este estudo visa realizar uma revisão sobre o tema. Método: Foi feita uma busca nas bases de dados MEDLINE e LILACS, utilizando como palavras de busca antidepressant, cancer e nomes das diferentes drogas antidepressivas. Resultados: Onze artigos foram selecionados. Foram encontrados seis artigos sugerindo uma associação positiva fraca entre o uso de antidepressivos e o crescimento tumoral e cinco artigos que não sugeriam a associação. Discussão: Os resultados dos estudos com relação ao risco de câncer associado ao uso de antidepressivos são ainda conflitantes. Na maioria dos estudos, a análise multivariada não mostra associação positiva em uso de antidepressivos e câncer, a não ser em casos específicos, como linfoma de Hodgkin. Descritores: Antidepressivos, câncer, risco. AbstractIntroduction: Some studies suggest that the use of antidepressants could increase the risk of cancer. This study aims at performing a review on this subject. Method: A search was performed in the MEDLINE and LILACS databases using the keywords antidepressant, cancer and names of varied antidepressant drugs. Results: Eleven articles were selected. Six articles were found suggesting a positive weak association between use of antidepressants and tumoral growth. In five articles this association was not found. Discussion: The results of studies on increased risk of cancer associated with antidepressants are still conflicting. In most studies the multivariate analysis did not show positive association between use of antidepressants and cancer, unless in specific cases, such as Hodgkin's lymphoma.