title: [Imaging of pneumonia].
abstract: In patients with suspected pneumonia, chest radiography and CT play an important role in making the differential diagnosis and evaluating disease severity and progress. The radiologic patterns of both community-acquired and opportunistic pneumonias were reviewed and compared with those of non-infectious lung diseases. The important findings in the diagnosis of pneumonias were as follows: 1) the relationship between the extent of consolidation and segment or lobe; 2) homogeneity or heterogeneity of opacity; 3) presence of thickening of bronchi and bronchioli; centrilobular, acinar, lobular, and segmental opacities; air bronchogram; tree-inbud appearance, and mosaic perfusion; and 4) size and distribution of nodules.
authors.affiliation: Department of Radiology, Yamaguchi University School of Medicine.
authors.forename: Tsuneo
authors.initials: T
authors.lastname: Matsumoto
mesh_terms: D001995:Bronchography; D017714:Community-Acquired Infections / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D006801:Humans; D011014:Pneumonia / Q000145:classification / Q000000981:diagnostic imaging*; D013902:Radiography, Thoracic; D012720:Severity of Illness Index; D014057:Tomography, X-Ray Computed