Symptomatic bronchopulmonary involvement is a rare extraintestinal com
plication of Crohn's disease. 18 months after the diagnosis of chronic
inflammatory bowel disease a 16-year old female patient developed pro
longed afebrile laryngotracheobronchitis and weight loss. Sulfasalazin
e treatment had been continued up to this stage and there were no conc
omitant intestinal symptoms. Pulmonary function testing revealed mild
restrictive impairment,the chest x-ray showed bilaterally increased in
terstitial marking. On bronchoscopy there was subglottic laryngitis an
d granulomatous non-purulent bronchitis. In bronchial biopsies submuco
us non-caseating granulomas with epitheloid cells could be demonstrate
d histologically. While clinical symptoms regressed spontaneously over
the next weeks, pulmonary function impairment persisted over many mon
ths. Discussion: Respiratory involvement in Crohn's disease can occur
during remission of abdominal symptoms. The differential diagnosis of
respiratory symptoms in patients with Crohn's disease should always in
clude extraintestinal manifestations of the primary disease.