title: Pediatric mediastinal masses.
mesh_terms: D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008223:Lymphoma / Q000175:diagnosis; D008479:Mediastinal Neoplasms / Q000175:diagnosis* / Q000601:surgery; D009447:Neuroblastoma / Q000175:diagnosis; D013724:Teratoma / Q000175:diagnosis