title: [Duodenal tuberculosis: a difficult diagnosis].
abstract: BACKGROUND
  The polymorphous clinical presentation of tuberculosis located in the duodenum may mislead diagnosis.
  
  
  METHODS
  A 69-year-old man had duodenal stenosis associated with calculous common bile duct obstruction. Crohn's disease was initially diagnosed and the patient was treated with corticosteroids. Two months later, the diagnosis was rectified when pulmonary tuberculosis developed.
  
  
  CONCLUSIONS
  This case emphasizes the lack of specific clinical, radiological, endoscopic and histological signs of duodenal tuberculosis.
authors.affiliation: Service de Gastroentérologie, Centre Hospitalier des Chanaux, Macon.
authors.forename: C
authors.initials: C
authors.lastname: Naouri
authors.forename: P
authors.initials: P
authors.lastname: Menecier
authors.forename: A
authors.initials: A
authors.lastname: Naouri
authors.forename: P
authors.initials: P
authors.lastname: Levenq
mesh_terms: D000368:Aged; D003424:Crohn Disease / Q000175:diagnosis; D003951:Diagnostic Errors; D004378:Duodenal Diseases / Q000175:diagnosis*; D006801:Humans; D008297:Male; D014385:Tuberculosis, Gastrointestinal / Q000175:diagnosis*