title: Evaluation of Chest X-ray and Thoracic Computed Tomography in Patients with Suspected Tuberculosis.
abstract: OBJECTIVE
  To investigate if there is any correlation between positive findings detected by posterior-anterior (PA) chest radiograph and thoracic computerized tomography (CT) in cases with suspected lung tuberculosis (TB) due to positive tuberculin skin test (TST) results.
  
  
  METHODS
  This is a retrospective evaluation of the medical files of patients who visited the Department of Pediatrics, Istanbul University, Istanbul Faculty of Medicine from 2006, through 2011 as outpatients and had positive TST (>15 mm) results.
  
  
  RESULTS
  A total of 326 patients were included in the study; 45.7 % (n = 149) were girls, and the mean age was 9.0 ± 4.1 y (range: 1-17 y). In total, 14.4 % (n = 47) had TB findings, all of which were in the form of hilar lymphadenopathy. Among the 47 cases with TB findings in PA chest X-ray, 45 (95.7 %) also had findings in thoracic CT. Only 2 (4.3 %) patients had normal thoracic CT results although their PA chest X-ray results were positive.
  
  
  CONCLUSIONS
  Evaluation for pulmonary TB in children with positive isolated TSTs should be made primarily with PA chest X-ray. A routine thoracic CT scan is not necessary for asymptomatic patients with only hilar lymphadenopathy findings in PA chest radiographs.
authors.affiliation: Department of Pediatrics, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey. msaitdurmus@gmail.com.|Merkez mah. Silahtaraga cad, No:73 Eyüp, Istanbul, Turkey. msaitdurmus@gmail.com.
authors.forename: Mehmet Sait
authors.initials: MS
authors.lastname: Durmus
authors.affiliation: Department of Pediatrics, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
authors.forename: Ismail
authors.initials: I
authors.lastname: Yildiz
authors.affiliation: Department of Pediatrics, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
authors.forename: Murat
authors.initials: M
authors.lastname: Sutcu
authors.affiliation: Department of Pediatrics, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
authors.forename: Muhammet
authors.initials: M
authors.lastname: Bulut
authors.affiliation: Department of Pediatrics, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
authors.forename: Muhammet Ali
authors.initials: MA
authors.lastname: Varkal
authors.affiliation: Department of Pediatrics, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
authors.forename: Furkan Ubeydullah
authors.initials: FU
authors.lastname: Ertem
authors.affiliation: Department of Pediatrics, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
authors.forename: Ayse
authors.initials: A
authors.lastname: Kilic
authors.affiliation: Department of Pediatrics, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
authors.forename: Fatma
authors.initials: F
authors.lastname: Oguz
authors.affiliation: Department of Pediatrics, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
authors.forename: Emin
authors.initials: E
authors.lastname: Unuvar
authors.affiliation: Department of Radiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.
authors.forename: Ensar
authors.initials: E
authors.lastname: Yekeler
mesh_terms: D000293:Adolescent; D002648:Child; D005260:Female; D006801:Humans; D007194:India / Q000453:epidemiology; D008168:Lung / Q000000981:diagnostic imaging*; D000072281:Lymphadenopathy / Q000175:diagnosis / Q000209:etiology; D008297:Male; D009169:Mycobacterium tuberculosis / Q000302:isolation & purification*; D013902:Radiography, Thoracic / Q000379:methods*; D012189:Retrospective Studies; D063189:Symptom Assessment / Q000379:methods; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014374:Tuberculin Test / Q000379:methods; D014397:Tuberculosis, Pulmonary / Q000150:complications / Q000175:diagnosis / Q000453:epidemiology / Q000503:physiopathology
keywords: Chest X-ray; Children; Radiology; Tuberculin skin test; Tuberculosis