title: A newborn with a chest mass.
authors.affiliation: Department of Pediatrics, University of Massachusetts Medical School, Worcester.
authors.forename: Mark
authors.initials: M
authors.lastname: Vining
authors.affiliation: Department of Pediatrics, University of Massachusetts Medical School, Worcester.
authors.forename: Carolyn
authors.initials: C
authors.lastname: Keiper
authors.affiliation: Department of Pediatrics, University of Massachusetts Medical School, Worcester.
authors.forename: Karen
authors.initials: K
authors.lastname: Cotting
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D047708:Myofibroma / Q000473:pathology*; D013899:Thoracic Neoplasms / Q000473:pathology*