St. Louis Breast Center is now part of Solis Mammography, the nation's leader in breast health and the provider of choice for generations of women. St. Louis Breast Center | Solis Mammography Ballwin will continue to offer 3D screening and 3D diagnostic mammography, screening and diagnostic breast ultrasound, ultrasound-guided breast biopsy, breast cyst aspiration and cancer risk assessment - all in an environment uniquely designed to promote patient peace of mind. Our dedicated professionals, caring environment and state-of-the-art technology deliver a better mammogram, making it easy for you to prioritize your breast health.