title: Roentgenogram of the month. Bronchial obstruction due to a calcified mass.
mesh_terms: D000328:Adult; D001980:Bronchi / Q000473:pathology; D001984:Bronchial Neoplasms / Q000000981:diagnostic imaging*; D001995:Bronchography; D002114:Calcinosis / Q000000981:diagnostic imaging*; D002276:Carcinoid Tumor / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male