Newborn with a posterior left chest wall mass on prenatal ultrasound Pediatric Imaging Musculoskeletal May 23, 2020May 9, 2020 Axial T1 without contrast (top), T2 (middle) and T1 with contrast (bottom) MRI of the chest shows a mass composed of multiple large fluid-filled structures separated by thin septations which faintly enhance. The diagnosis was lymphatic malformation. Related Published May 23, 2020May 9, 2020