title: [Case of pulmonary fibrosis with normal thoracic x-ray].
abstract: Respiratory performance tests and the gas diffusion data sometimes clinch the diagnosis of lung disease when all other findings are negative. A subject with cyanosis, dyspnea, drumstick fingers, a normal chest X-ray picture and restrictive functional changes accompanied by inefficient diffusion is described.
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008105:Liver Cirrhosis, Biliary / Q000175:diagnosis; D008168:Lung / Q000000981:diagnostic imaging*; D008175:Lung Neoplasms / Q000175:diagnosis; D011658:Pulmonary Fibrosis / Q000175:diagnosis / Q000000981:diagnostic imaging*; D011859:Radiography; D011877:Radionuclide Imaging
vernacular_title: Un caso di "fibrosi polmonare" con rx torace normale