title: A rapidly enlarging neck mass.
authors.affiliation: Royal Belfast Hospital for Sick Children.
authors.forename: A
authors.initials: A
authors.lastname: Paterson
authors.forename: P S
authors.initials: PS
authors.lastname: Thomas
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000175:diagnosis* / Q000188:drug therapy; D008297:Male; D009333:Neck / Q000473:pathology*; D013964:Thyroid Neoplasms / Q000175:diagnosis* / Q000188:drug therapy