title: Does CT have an additional diagnostic value over ultrasound in the evaluation of acute inflammatory neck masses in children?
abstract: OBJECTIVE
  We assessed the additional value of contrast-enhanced CT versus US for evaluation of acute cervical inflammatory masses and choosing treatment strategy.
  
  
  METHODS
  We retrospectively reviewed 210 files of paediatric patients admitted with an acute inflammatory neck mass from 2005 to 2008 (M:F = 108:102, mean age 4.5 years). All patients underwent diagnostic ultrasound and Doppler of the neck; CT was performed in 25 patients within 2-72 h. Clinical and radiological findings were correlated, and imaging impact on patient management was assessed.
  
  
  RESULTS
  In the 210 patients, US provided sufficient information in 184 of 185 (99.5%) patients undergoing only US. In one patient with no sonographic evidence of collection, an abscess was drained surgically on the point of fluctuation. Fluid collections were drained in 17 patients based on US findings; inflammatory processes were managed conservatively in 164. CT provided additional information in 4 of 25 patients (16.0%), revealing airways compromise in 2 and collections in 2.
  
  
  CONCLUSIONS
  US provided sufficient information about the nature, location, and extent of the inflammatory mass in 97.6% of our patients, suggesting it should be the main, and generally single, imaging technique in these patients. CT should be reserved for patients with an aggravating clinical course and suspicion of deep neck infection or airways compromise.
authors.affiliation: Department of Radiology, Hadassah - Hebrew University Medical Center, POB 12000, Jerusalem, Israel. katro70@yahoo.com
authors.forename: Katya
authors.initials: K
authors.lastname: Rozovsky
authors.forename: Nurith
authors.initials: N
authors.lastname: Hiller
authors.forename: Benjamin Z
authors.initials: BZ
authors.lastname: Koplewitz
authors.forename: Natalia
authors.initials: N
authors.lastname: Simanovsky
mesh_terms: D000208:Acute Disease; D002675:Child, Preschool; D005260:Female; D006257:Head / Q000000981:diagnostic imaging*; D006801:Humans; D007249:Inflammation / Q000175:diagnosis*; D008297:Male; D009333:Neck / Q000000981:diagnostic imaging*; D015203:Reproducibility of Results; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014463:Ultrasonography / Q000379:methods*