title: [Silicotuberculosis].
abstract: OBJECTIVE
  Tuberculosis is a serious and common complication of silicosis. The aim of this study is to describe the epidemiological, clinical, radiological and progressive aspects of this pathological entity.
  
  
  METHODS
  The study concerns 23 cases of silicotuberculosis which were collected at the service of respiratory diseases at CHU Ibn Rochd of Casablanca, Morocco during 12years (2003-2015).
  
  
  RESULTS
  All patients were men. They were 7 diggers, 5 rock crushers, 7 miners and 4 masons. The mean duration of silica exposure was 11years. The symptomatology was dominated by dyspnea and persistent bronchial syndrome. Imagery showed tumor-like opacities in all cases, associated with mediastinal calcified lymphadenopathy in 9 cases, with micronodules in 8 cases and an excavated opacity in 2 cases. The diagnosis of tuberculosis was confirmed by isolation of the Koch's bacillus in sputum in 13% of cases in the bronchial aspirate in 52% and culture in sputum post-bronchoscopy in 13%. The bronchial biopsies confirmed the diagnosis in 2 cases. Tuberculosis had complicated silicosis 9years on average after the cessation of exposure to silica in 65% of cases. The antituberculous treatment was started in all patients with good clinical outcome in 22 cases. We had deplored a case of death by acute respiratory failure.
  
  
  CONCLUSIONS
  Silicosis increases the risk of tuberculosis, hence the importance of TB screening in all patients with silicosis.
authors.affiliation: Service des maladies respiratoires, CHU Ibn Rochd, Casablanca, Maroc. Electronic address: ikbale.14@gmail.com.
authors.forename: I
authors.initials: I
authors.lastname: Elkard
authors.affiliation: Service des maladies respiratoires, CHU Ibn Rochd, Casablanca, Maroc.
authors.forename: N
authors.initials: N
authors.lastname: Zaghba
authors.affiliation: Service des maladies respiratoires, CHU Ibn Rochd, Casablanca, Maroc.
authors.forename: H
authors.initials: H
authors.lastname: Benjelloun
authors.affiliation: Service des maladies respiratoires, CHU Ibn Rochd, Casablanca, Maroc.
authors.forename: A
authors.initials: A
authors.lastname: Bakhatar
authors.affiliation: Service des maladies respiratoires, CHU Ibn Rochd, Casablanca, Maroc.
authors.forename: N
authors.initials: N
authors.lastname: Yassine
mesh_terms: D000368:Aged; D018450:Disease Progression; D006801:Humans; D008297:Male; D008875:Middle Aged; D009018:Morocco / Q000453:epidemiology; D016273:Occupational Exposure / Q000706:statistics & numerical data; D013902:Radiography, Thoracic; D012189:Retrospective Studies; D012307:Risk Factors; D012829:Silicosis / Q000000981:diagnostic imaging / Q000453:epidemiology* / Q000473:pathology; D012830:Silicotuberculosis / Q000000981:diagnostic imaging / Q000453:epidemiology* / Q000209:etiology / Q000473:pathology
keywords: Bacille de Koch; Bronchoscopie; Bronchoscopy; Exposition à la silice; Exposure to silica; Koch's bacillus; Silicose; Silicosis; Tuberculose; Tuberculosis