Abstract
Objective: Describe the occurrence of breast cancer in pregnant women, as well as to discuss the main forms of diagnosis and treatment, from a narrative review of the literature. Literature review: Breast cancer in pregnant women, although rare, is the most common type of cancer diagnosed in this period. The physiological and anatomical changes that occur during pregnancy can lead to a late diagnosis and worse prognosis. The procedures for the diagnosis and staging of the neoplasm must take into account the harmful capacity for the fetus, due to the radiation from the equipment and contrast materials, thus, ultrasonography is the gold standard imaging exam. Regarding treatment, mastectomy and axillary lymph node dissection are part of the surgical therapeutic plan and chemotherapy can be performed after the first trimester. Final considerations: It is essential that an individualized assessment takes place, considering the gestational age and stage of the disease, in order to institute the appropriate therapy for each patient, minimizing the impacts on the pregnant woman and the fetus.