title: Chest CT Signs in Pulmonary Disease: A Pictorial Review.
abstract: CT scanning of the chest is one of the most important imaging modalities available to a pulmonologist. The advent of high-resolution CT scanning of the chest has led to its increasing use. Although chest radiographs are still useful as an initial test, their utility is limited in the diagnosis of lung diseases that depend on higher resolution images such as interstitial lung diseases and pulmonary vascular diseases. Several metaphoric chest CT scan signs have been described linking abnormal imaging patterns to lung diseases. Some of these are specific to a disease, whereas others help narrow the differential diagnosis. Recognizing these imaging patterns and CT scan signs are thus vitally important. In the present article, we describe a comprehensive list of the commonly encountered metaphoric chest CT scan signs and their clinical relevance.
authors.affiliation: Respiratory Institute, Cleveland Clinic, Cleveland, OH.
authors.forename: Shine
authors.initials: S
authors.lastname: Raju
authors.affiliation: Radiology Institute, Cleveland Clinic, Cleveland, OH.
authors.forename: Subha
authors.initials: S
authors.lastname: Ghosh
authors.affiliation: Respiratory Institute, Cleveland Clinic, Cleveland, OH. Electronic address: mehtaa1@ccf.org.
authors.forename: Atul C
authors.initials: AC
authors.lastname: Mehta
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging; D000542:Alveolitis, Extrinsic Allergic / Q000000981:diagnostic imaging; D002114:Calcinosis / Q000000981:diagnostic imaging; D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging; D000072226:Computed Tomography Angiography; D018549:Cryptogenic Organizing Pneumonia / Q000000981:diagnostic imaging; D003550:Cystic Fibrosis / Q000000981:diagnostic imaging; D016724:Empyema, Pleural / Q000000981:diagnostic imaging; D005547:Foreign Bodies / Q000000981:diagnostic imaging; D030342:Genetic Diseases, Inborn / Q000000981:diagnostic imaging; D006470:Hemorrhage / Q000000981:diagnostic imaging; D006801:Humans; D055744:Invasive Pulmonary Aspergillosis / Q000000981:diagnostic imaging; D008168:Lung / Q000000981:diagnostic imaging*; D008171:Lung Diseases / Q000000981:diagnostic imaging*; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary; D008223:Lymphoma / Q000000981:diagnostic imaging; D061330:Multidetector Computed Tomography; D015270:Mycobacterium avium-intracellulare Infection / Q000000981:diagnostic imaging; D010995:Pleural Diseases / Q000000981:diagnostic imaging*; D011020:Pneumonia, Pneumocystis / Q000000981:diagnostic imaging; D011649:Pulmonary Alveolar Proteinosis / Q000000981:diagnostic imaging; D001261:Pulmonary Atelectasis / Q000000981:diagnostic imaging; D017565:Sarcoidosis, Pulmonary / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed
keywords: CAT scan; CT scan; chest imaging; pulmonary; radiology; review; thoracic