Infant with respiratory distress and an anterior mediastinal mass Pediatric Imaging Surgical-Pathological-Clinical June 6, 2024April 19, 2024 Post-mortem pathological image shows a large heterogenous mixed cystic and solid mass arising from the pericardium of the heart. The diagnosis was pericardial teratoma. Related Published June 6, 2024April 19, 2024