title: Imaging of tuberculosis. V. Peripheral osteoarticular and soft-tissue tuberculosis.
abstract: OBJECTIVE
  To assess frequency, location, and appearance of peripheral osteoarticular and soft-tissue tuberculosis (TB).
  
  
  METHODS
  Twenty-five of 503 patients with TB had peripheral osteoarticular TB and 5 had soft-tissue TB. Chest radiography, CT, and MR imaging were applied.
  
  
  RESULTS
  The location of the osteoarticular lesion was articular/epiphyseal in 14 patients, articular/metaphyseal in 3, and metaphyseal without joint involvement in 3. Involvement of flat bone was found in 4 patients (5 lesions). The morphologic appearance was similar to that of a lytic tumour in 9 patients (10 lesions) and that of a destructive joint lesion in 16 patients. The soft-tissue TB in all 5 patients presented as an abscess. Twelve patients had a total of 20 additional sites of involvement: chest in 9, abdomen in 4, spine in 4, the neck in 3, and the central nervous system in one patient.
  
  
  CONCLUSIONS
  On the basis of radiologic appearance, it can be difficult to differentiate peripheral osteoarticular and soft-tissue TB from other degenerative, inflammatory, or neoplastic disorders, and the importance of a high awareness is stressed in order to reach an early diagnosis.
authors.affiliation: Department of Radiology, King Faisal Specialist Hospital and Research Centre, Riyadh, Kingdom of Saudi Arabia.
authors.forename: C
authors.initials: C
authors.lastname: Hugosson
authors.forename: R S
authors.initials: RS
authors.lastname: Nyman
authors.forename: J
authors.initials: J
authors.lastname: Brismar
authors.forename: S G
authors.initials: SG
authors.lastname: Larsson
authors.forename: S
authors.initials: S
authors.lastname: Lindahl
authors.forename: C
authors.initials: C
authors.lastname: Lundstedt
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D011859:Radiography; D018461:Soft Tissue Infections / Q000000981:diagnostic imaging*; D014376:Tuberculosis / Q000000981:diagnostic imaging*; D014394:Tuberculosis, Osteoarticular / Q000000981:diagnostic imaging*