A 5-year Old Immigrant Child With a Mediastinal Mass

Raymen Rammy Assaf¹, Jill Hoffman, Chintan Parekh+2

• ¹From the *Pediatric Residency Program, Children's Hospital Los Angeles, Los Angeles, California; †Keck School of Medicine, University of Southern California, Los Angeles, California; ‡Pediatric Infectious Diseases and §Children's Center for Cancer and Blood Disease, Children's Hospital Los Angeles, Los Angeles, California; ¶Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, California; ‖Assistant Professor of Clinical Pathology, Keck School of Medicine, University of Southern California, Los Angeles, California; and **Department of Pathology and Laboratory Medicine and ††Department of General Pediatrics, Children's Hospital Los Angeles, Los Angeles, California.