title: Images in clinical medicine. Westermark sign in pulmonary embolism.
authors.affiliation: Addenbrooke's Hospital, Cambridge, United Kingdom.
authors.forename: Anant Subramanian
authors.initials: AS
authors.lastname: Krishnan
authors.forename: Tristan
authors.initials: T
authors.lastname: Barrett
mesh_terms: D002037:Bundle-Branch Block / Q000000981:diagnostic imaging; D004417:Dyspnea / Q000209:etiology; D005260:Female; D005338:Fibrin Fibrinogen Degradation Products / Q000032:analysis; D006801:Humans; D008875:Middle Aged; D011651:Pulmonary Artery / Q000000981:diagnostic imaging*; D011655:Pulmonary Embolism / Q000150:complications / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
chemical_list: D005338:Fibrin Fibrinogen Degradation Products; C036309:fibrin fragment D