title: [INTRATHORACIC ROUND IMAGES. CIRCUMSTANCES OF DISCOVERY; ORIGIN; NATURE; DIAGNOSTIC PROCEDURE; PRACTICAL PROBLEMS].
mesh_terms: D003560:Cysts; D004443:Echinococcosis; D004445:Echinococcosis, Pulmonary; D006801:Humans; D008175:Lung Neoplasms; D008476:Mediastinal Cyst; D008479:Mediastinal Neoplasms; D009369:Neoplasms / Q000175:diagnosis*; D013902:Radiography, Thoracic; D013896:Thoracic Diseases; D013899:Thoracic Neoplasms; D014375:Tuberculoma
keywords: CYSTS; ECHINOCOCCOSIS, PULMONARY; LUNG NEOPLASMS; MEDIASTINAL CYST; MEDIASTINAL NEOPLASMS; NEOPLASM DIAGNOSIS; THORACIC DISEASES; THORACIC NEOPLASMS; THORACIC RADIOGRAPHY; TUBERCULOMA
vernacular_title: LES IMAGES ARRONDIES INTRATHORACIQUES. CIRCONSTANCES DE D'ECOUVERTE: ORIGINE; NATURE;  CONDUITE DU DIAGNOSTIC; PROBL'EMES PRATIQUES.