{Reference Type}: Case Reports {Title}: Screening a Solitary Dilated Duct in the Breast: A Pictorial Essay. {Author}: Ayres VJ;Ramalho LC;Wludarski SCL;Fleury EFC; {Journal}: Breast Cancer (Dove Med Press) {Volume}: 13 {Issue}: 0 {Year}: 2021 {Factor}: 5.088 {DOI}: 10.2147/BCTT.S307842 {Abstract}: A solitary dilated duct visualized by mammography is a rare event. According to the latest edition of BI-RADSĀ® it is classified as category 4. This series of cases shows complementary ultrasound of a solitary dilated duct can reduce false-positive results on mammography.