title: Mobile mass in a pulmonary cavity or air meniscus sign.
mesh_terms: D000367:Age Factors; D001228:Aspergillosis / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D004445:Echinococcosis, Pulmonary / Q000000981:diagnostic imaging*; D005734:Gangrene; D006099:Granuloma / Q000000981:diagnostic imaging; D006801:Humans; D008169:Lung Abscess / Q000000981:diagnostic imaging; D008171:Lung Diseases / Q000175:diagnosis; D008172:Lung Diseases, Fungal / Q000000981:diagnostic imaging; D008175:Lung Neoplasms / Q000000981:diagnostic imaging; D008297:Male; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging; D011859:Radiography; D014397:Tuberculosis, Pulmonary / Q000000981:diagnostic imaging