title: Radiologic differential diagnosis. Radiologic pattern: solitary cavity.
abstract: The differential diagnosis of a left lower lobe cavity in this young patient with a history of productive cough should include hiatal hernia, pulmonary abscess, bronchiectatic cyst and bronchopulmonary sequestration. Hiatal hernia should be ruled out by barium swallow; acute pulmonary abscess by the lack of a history suggestive of a necrotizing pneumonia; bronchiectasis by bronchogram; and intralobar bronchopulmonary sequestration should be confirmed by aortography.
mesh_terms: D000328:Adult; D001982:Bronchial Diseases / Q000000981:diagnostic imaging; D001987:Bronchiectasis / Q000000981:diagnostic imaging; D001998:Bronchopulmonary Sequestration / Q000000981:diagnostic imaging*; D003560:Cysts / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D005260:Female; D006551:Hernia, Hiatal / Q000000981:diagnostic imaging; D006801:Humans; D008169:Lung Abscess / Q000000981:diagnostic imaging; D011859:Radiography