title: What is your diagnosis? A large soft tissue mass measuring approximately 15 X 12 X 13 cm is present in the caudodorsal aspect of the thorax, just right of midline, extending from the tracheal bifurcation to the diaphragm.
authors.affiliation: Department of Small Animal Clinical Sciences, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Tech, Blacksburg, VA 24061, USA.
authors.forename: Karanvir S
authors.initials: KS
authors.lastname: Aulakh
authors.forename: Tisha A M
authors.initials: TA
authors.lastname: Harper
authors.forename: Farrah B
authors.initials: FB
authors.lastname: Horowitz
authors.forename: Reid
authors.initials: R
authors.lastname: Tyson
mesh_terms: D000818:Animals; D004283:Dog Diseases / Q000000981:diagnostic imaging* / Q000473:pathology; D004285:Dogs; D008297:Male; D008476:Mediastinal Cyst / Q000000981:diagnostic imaging / Q000473:pathology / Q000662:veterinary*; D014057:Tomography, X-Ray Computed / Q000662:veterinary