title: Primary head and neck Langerhans cell histiocytosis in children.
abstract: OBJECTIVE
  To evaluate the experience of a tertiary care children's hospital in the diagnosis, treatment, and long-term outcomes of patients with primary head and neck Langerhans' cell histiocytosis.
  
  
  METHODS
  A retrospective study of patients who presented with Langerhans' cell histiocytosis that primarily affected head and neck sites between January 1, 1986, and December 31, 2004, at Children's Mercy Hospital.
  
  
  RESULTS
  Twenty-two patients were diagnosed and treated for LCH at our hospital during this time period. Seventeen (77%) patients had head and neck involvement; 14 (64%) of these patients had primary head and neck LCH. Lesions of the head and neck are complicated and involve multiple structures including the calvarium and skull base. Overall outcomes were good with 10 of 14 patients without disease at time of last follow-up. Recurrence is common and involved 50% of our patients.
  
  
  CONCLUSIONS
  Langerhans' cell histiocytosis commonly affects the head and neck. These lesions are complex and require prudent evaluation and treatment. Due to the complex nature of head and neck lesions, primary chemotherapy is the treatment of choice.
  
  
  CONCLUSIONS
  Because of the frequent head and neck involvement of this disease, otolaryngologists need to be familiar with its presentation, work-up, and treatment.
  
  
  METHODS
  C-4.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, University of Kansas School of Medicine, Medical Center, 3901 Rainbow Boulevard, Kansas City, KS 66160, USA.
authors.forename: Luke
authors.initials: L
authors.lastname: Buchmann
authors.forename: Abbas
authors.initials: A
authors.lastname: Emami
authors.forename: Julie L
authors.initials: JL
authors.lastname: Wei
mesh_terms: D002648:Child; D002675:Child, Preschool; D005147:Facial Bones / Q000473:pathology; D005260:Female; D006257:Head / Q000473:pathology; D006646:Histiocytosis, Langerhans-Cell / Q000175:diagnosis* / Q000188:drug therapy / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009333:Neck / Q000473:pathology; D012886:Skull / Q000473:pathology