title: Photo quiz. Birefringent crystals in a pulmonary specimen.
authors.affiliation: Department of Pathology, The Western Pennsylvania Hospital, Pittsburgh, PA 15224, USA.
authors.forename: Alexis R
authors.initials: AR
authors.lastname: Boscak
authors.forename: Ramana K
authors.initials: RK
authors.lastname: Surampudi
authors.forename: Stanley J
authors.initials: SJ
authors.lastname: Geyer
mesh_terms: D000368:Aged; D001718:Birefringence; D006339:Heart Rate; D006801:Humans; D007958:Leukocyte Count; D008171:Lung Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000503:physiopathology; D008297:Male; D011859:Radiography; D014962:X-Ray Film