title: Idiopathic pulmonary fibrosis. Another cause of ventilation/perfusion mismatch.
abstract: A case of idiopathic pulmonary fibrosis, presenting as a single segmental perfusion defect without a corresponding ventilatory abnormality in a patient suspected of having a pulmonary embolus is reported. This has not been reported previously in the literature.
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008168:Lung / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging / Q000503:physiopathology; D011658:Pulmonary Fibrosis / Q000000981:diagnostic imaging* / Q000503:physiopathology; D011877:Radionuclide Imaging; D014692:Ventilation-Perfusion Ratio; D014980:Xenon Radioisotopes
chemical_list: D014980:Xenon Radioisotopes