Preschooler with a right chest wall mass Pediatric Imaging Musculoskeletal June 12, 2026March 26, 2026 Transverse (above) and sagittal (below) US of the chest wall show a solid well circumscribed mass in the subcutaneous tissue with heterogenous echogenicity that overall is isoechoic to adjacent fat and which did not have increased vascularity. The diagnosis was lipoma. Related Published June 12, 2026March 26, 2026