title: Sarcoid: an unusual mimicker of classic pulmonary embolus.
abstract: A patient had both the clinical presentations and the ventilation-perfusion scan that simulated pulmonary embolism so closely that anticoagulant therapy was administered. Computed tomography of the chest and Ga-67 citrate scintigraphy identified hilar adenopathy due to sarcoidosis as the cause of a ventilation-perfusion mismatch.
authors.affiliation: Department of Radiology, University of Texas Branch, Galveston, USA.
authors.forename: F A
authors.initials: FA
authors.lastname: Morello
authors.forename: S A
authors.initials: SA
authors.lastname: Ali
authors.forename: F
authors.initials: F
authors.lastname: Cesani
mesh_terms: D000328:Adult; D002951:Citrates; D003951:Diagnostic Errors; D005708:Gallium; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging; D008198:Lymph Nodes / Q000000981:diagnostic imaging; D008297:Male; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging*; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D017565:Sarcoidosis, Pulmonary / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D014692:Ventilation-Perfusion Ratio
chemical_list: D002951:Citrates; D019275:Radiopharmaceuticals; D005708:Gallium; C103850:gallium citrate