title: Tuberculosis of the parotid gland: computed tomographic findings.
abstract: BACKGROUND
  Tuberculosis (TB) of the parotid gland is rare, even in endemic regions. Approximately 100 cases have been reported in the English literature. The computed tomographic (CT) features, however, have seldom been studied.
  
  
  OBJECTIVE
  To determine the diagnostic CT features of tuberculosis of the parotid gland.
  
  
  METHODS
  CT studies of four histologically proven cases of tuberculosis of the parotid gland were retrospectively reviewed.
  
  
  RESULTS
  A total of 15 enlarged lymph nodes were found in the superficial lobes of the parotid glands. The nodes were arranged linearly within the gland. Enhancement patterns included homogeneous enhancement (9/15, 60%), homogeneous enhancement with eccentric microcysts (3/15, 20%), and thick-walled rim enhancement with central lucency (3/15, 20%). Thickened adjacent fascial plane and platysma were seen in two patients. Ipsilateral cervical lymphadenopathy was seen in all patients.
  
  
  CONCLUSIONS
  In patients presenting with unilateral parotid nodules, TB should be considered when linearly arranged enhancing nodules are demonstrated in the superficial lobes of the glands on CT scan.
authors.affiliation: Department of Radiology, West China Hospital, Sichuan University, Sichuan, China. weiyi_scu@hotmail.com
authors.forename: Y
authors.initials: Y
authors.lastname: Wei
authors.forename: J
authors.initials: J
authors.lastname: Xiao
authors.forename: M H
authors.initials: MH
authors.lastname: Pui
authors.forename: Q
authors.initials: Q
authors.lastname: Gong
mesh_terms: D000368:Aged; D002648:Child; D005260:Female; D006801:Humans; D008875:Middle Aged; D010305:Parotid Diseases / Q000000981:diagnostic imaging*; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D014388:Tuberculosis, Lymph Node / Q000000981:diagnostic imaging*