title: [Analysis of 9 cases of pulmonary tuberculosis complicated with legionnaires disease].
abstract: OBJECTIVE
  To study the characteristics of pulmonary tuberculosis complicated with legionnaires disease (LD) to avoid misdiagnosis and incorrect treatment.
  
  
  METHODS
  Nine cases of pulmonary tuberculosis complicated with LD were retrospectively analyzed.
  
  
  RESULTS
  The clinical and chest X-ray manifestations varied, and no characteristics were found in these cases. Because cross antibodies existed between Legionella pneumophila and other causal bacteria, it was found difficult to differentiate LD, pulmonary tuberculosis and other causal bacteria infection. Efficacy of erythromycin combined with rifampicin, and decrease of serum titres of Legionella pneumophila four times after treatment were found helpful for definite diagnosis of LD.
  
  
  CONCLUSIONS
  Only paying much attention to LD, and detecting the serum antibody as early as possible can provide evidence for diagnosing of the disease.
authors.affiliation: Beijing Tuberculosis & Thoracic Tumor Institute.
authors.forename: W
authors.initials: W
authors.lastname: Gao
authors.forename: X
authors.initials: X
authors.lastname: Huang
authors.forename: Z
authors.initials: Z
authors.lastname: Kong
mesh_terms: D000328:Adult; D000368:Aged; D000900:Anti-Bacterial Agents / Q000008:administration & dosage; D000995:Antitubercular Agents / Q000008:administration & dosage; D004359:Drug Therapy, Combination; D004917:Erythromycin / Q000008:administration & dosage; D005260:Female; D006801:Humans; D007877:Legionnaires' Disease / Q000150:complications* / Q000188:drug therapy; D008297:Male; D008875:Middle Aged; D018410:Pneumonia, Bacterial / Q000188:drug therapy / Q000382:microbiology*; D012189:Retrospective Studies; D012293:Rifampin / Q000008:administration & dosage; D014397:Tuberculosis, Pulmonary / Q000150:complications* / Q000188:drug therapy
chemical_list: D000900:Anti-Bacterial Agents; D000995:Antitubercular Agents; D004917:Erythromycin; D012293:Rifampin