title: The recognition of lesions on chest radiographs.
abstract: An approach to the recognition of lesions on chest radiographs is outlined. Four basic groups of abnormalities by means of which lesions can be recognized are mentioned and are briefly described, namely an opacity, an area of increased translucency, a combination of an opacity and an area of increased translucency, and, especially, an alteration in normal radiological anatomy.
mesh_terms: D006801:Humans; D010364:Pattern Recognition, Visual; D013902:Radiography, Thoracic / Q000379:methods*