Mama supernumeraria bilateral. PresentaciÛn de un caso Bilateral Supernumerary Breast. A Case Report

Incidence of polymastia in the general population ranges from 0.4 to 6%. Accessory breasts are often considered a purely cosmetic problem; however various benign and malignant alterations may occur in these structures, as in any other breast tissue. A case of a patient who developed a painless mass in both axillary regions during pregnancy is presented. Her family physician interpreted it as lymphadenopathy. During the immediate puerperium, a greater enlargement in the axillary regions and pain, evident on physical examination, were found. Hence, a mammography and ultrasound were performed. Bilateral supernumerary breast and duct ectasia of the left breast were diagnosed.