title: Enigma and dilemma of the pulmonary nodule.
mesh_terms: D002282:Adenocarcinoma, Bronchiolo-Alveolar / Q000000981:diagnostic imaging*; D002283:Carcinoma, Bronchogenic / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D006222:Hamartoma / Q000000981:diagnostic imaging*; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging; D009362:Neoplasm Metastasis; D011859:Radiography; D003074:Solitary Pulmonary Nodule / Q000000981:diagnostic imaging* / Q000601:surgery