title: Solid aneurysmal bone cyst on the cervical spine of a young child.
abstract: BACKGROUND
  Solid aneurysmal bone cyst (S-ABC) is a variant of aneurysmal bone cyst (ABC), an uncommon benign bone tumor. There are few cases described in the cervical spine in kids up today. We treated a recurrent case with neurological involvement that needed multiple surgical procedures and radiotherapy.
  
  
  METHODS
  We report a case of C4 located S-ABC concerning a 2-year-old boy treated surgically by anterior and posterior approach. Three months after the initial procedure appearance of a tetraparesis led to diagnose a local recurrence treated by sclerotherapy and a second surgery. The patient had a full neurological recovery. Three months later, a follow-up CT scan showed a second recurrence requiring a new surgical revision by anterior approach and radiotherapy.
  
  
  RESULTS
  At 6-year follow-up after four surgical procedures, sclerotherapy and radiotherapy, the aneurysmal bone cyst has been healed. Patient had neurological impairment after a local recurrence but had full recovered after final revision surgery.
authors.affiliation: Service d'orthopédie infantile, Hôpital Universitaire Necker Enfants Malades, Assistance Publique Hôpitaux de Paris, 149 Rue de Sèvres, 75015, Paris, France, laurent.casabianca@hotmail.fr.
authors.forename: L
authors.initials: L
authors.lastname: Casabianca
authors.forename: A
authors.initials: A
authors.lastname: Journé
authors.forename: G
authors.initials: G
authors.lastname: Mirouse
authors.forename: M
authors.initials: M
authors.lastname: Zerah
authors.forename: D
authors.initials: D
authors.lastname: Moulies
authors.forename: C
authors.initials: C
authors.lastname: Glorion
authors.forename: T
authors.initials: T
authors.lastname: Odent
mesh_terms: D017824:Bone Cysts, Aneurysmal / Q000175:diagnosis* / Q000628:therapy; D002574:Cervical Vertebrae / Q000601:surgery; D002675:Child, Preschool; D003937:Diagnosis, Differential; D019317:Evidence-Based Medicine / Q000379:methods; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D012008:Recurrence; D013122:Spinal Diseases / Q000175:diagnosis* / Q000628:therapy; D014057:Tomography, X-Ray Computed