We report a case of thymic hyperplasia accompanied by pericardial lipomatosis and right facial hemihypertrophy in an 8-year-old boy. On imaging studies, the hyperplastic thymus had prominent curvilinear and nodular fatty areas simulating a fat-containing anterior mediastinal mass, which is an unusual finding in children. To our knowledge, this is the first report on a child with a combination of thymic hyperplasia, pericardial lipomatosis, and right facial hemihypertrophy. The radiologic findings are presented with a brief discussion.
Child ; Diagnosis, Differential ; Facial Asymmetry/complications/*diagnosis ; Heart Diseases/complications/*diagnosis/surgery ; Humans ; Hypertrophy/pathology ; Lipomatosis/complications/*diagnosis/surgery ; Magnetic Resonance Imaging ; Male ; Pericardium/*pathology ; Thymus Hyperplasia/complications/*diagnosis/surgery ; Tomography, X-Ray Computed