title: What is your diagnosis? Nine-year-old Labrador retriever with an intrathoracic mass.
authors.affiliation: Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI 53706.
authors.forename: Ellen W.
authors.initials: EW
authors.lastname: Evans
authors.forename: Richard R.
authors.initials: RR
authors.lastname: Dubielzig
authors.forename: Anthony P.
authors.initials: AP
authors.lastname: Carr
authors.forename: Jonathan F.
authors.initials: JF
authors.lastname: McAnulty
authors.forename: Callum W.
authors.initials: CW
authors.lastname: Hay