title: A study of pulmonary cavities.
mesh_terms: D001987:Bronchiectasis / Q000000981:diagnostic imaging*; D006801:Humans; D008168:Lung; D011859:Radiography; D014376:Tuberculosis; D014397:Tuberculosis, Pulmonary / Q000000981:diagnostic imaging*
keywords: BRONCHIECTASIS/radiography; TUBERCULOSIS, PULMONARY/radiography