title: Tuberculous lymphadenitis of the thorax: comparisons of imaging findings between patients with and those without HIV infection.
abstract: OBJECTIVE
  The purpose of this study was to discern differences in the clinical and radiologic presentations of intrathoracic tuberculous lymphadenitis in adult patients with and those without HIV infection.
  
  
  METHODS
  Between 2000 and 2010, 66 patients (28 men, 38 women; mean age, 45 ± 13.9 years) were found to have intrathoracic tuberculous lymphadenitis. Of these patients, 17 (26%) (15 men, two women; mean age, 47 ± 9.9 years) were HIV-seropositive. Thoracic CT scans were evaluated for involved lymph node stations, long-axis diameter of involved lymph nodes, presence of central necrosis in enlarged nodes, and other associated findings.
  
  
  RESULTS
  In HIV-positive patients, tuberculous lymphadenitis had more multifocal (mean number of involved nodal stations, 8.4 versus 3.6; p < 0.001) nodal involvement, had smaller nodes (mean long-axis diameter, 17 mm versus 21 mm; p = 0.004), and was more frequently associated with lung parenchymal lesions and extrathoracic lymph node and organ involvement (p < 0.05) than in HIV-negative patients. Tuberculous lymphadenitis was the sole manifestation of tuberculous infection in 22 of 49 (45%) HIV-negative patients and in 2 of 17 (12%) HIV-positive patients (p = 0.018).
  
  
  CONCLUSIONS
  Tuberculous lymphadenitis in patients with HIV infection is characterized by multiple-station lymphadenitis with extensive lung parenchymal, extrathoracic lymph node, and extrathoracic organ involvement.
authors.affiliation: Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50, Ilwon-Dong, Kangnam-Ku, Seoul 135-710, Korea.
authors.forename: Inyoung
authors.initials: I
authors.lastname: Song
authors.forename: Yeon Joo
authors.initials: YJ
authors.lastname: Jeong
authors.forename: Kyung Soo
authors.initials: KS
authors.lastname: Lee
authors.forename: Won-Jung
authors.initials: WJ
authors.lastname: Koh
authors.forename: Sang-Won
authors.initials: SW
authors.lastname: Um
authors.forename: Tae Sung
authors.initials: TS
authors.lastname: Kim
mesh_terms: D000328:Adult; D000368:Aged; D000995:Antitubercular Agents / Q000627:therapeutic use; D001999:Bronchoscopy; D003287:Contrast Media; D005260:Female; D015658:HIV Infections / Q000150:complications*; D006801:Humans; D007479:Iopamidol / Q000031:analogs & derivatives; D008297:Male; D008481:Mediastinoscopy; D008875:Middle Aged; D013902:Radiography, Thoracic / Q000379:methods*; D012189:Retrospective Studies; D018709:Statistics, Nonparametric; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014388:Tuberculosis, Lymph Node / Q000150:complications* / Q000000981:diagnostic imaging* / Q000188:drug therapy
chemical_list: D000995:Antitubercular Agents; D003287:Contrast Media; C057937:iomeprol; D007479:Iopamidol