Preschooler with respiratory distress and an anterior mediastinal mass Pediatric Imaging Surgical-Pathological-Clinical June 5, 2024April 19, 2024 Gross pathological image (above) shows a large heterogenous mixed cystic and solid mass. Specimen radiograph (below) shows multiple fine and coarse calcifications within the mass. The diagnosis was mediastinal teratoma. Related Published June 5, 2024April 19, 2024