title: Primary extranodal lymphosarcoma of the trachea in a cat.
abstract: A primary extranodal lymphosarcoma causing recurrent-episodes of dyspnea and exercise intolerance is described in a 13-year-old cat. The affected segment of the tracheal wall was markedly thickened due to transmural infiltration of monomorphic neoplastic lymphoid cells and the lumen was severely compressed. The diagnosis was based on light microscopic studies, positive immunostaining for feline IgA, and special stains.
authors.affiliation: Department of Veterinary Pathology, School of Veterinary Medicine, Seoul National University, Korea.
authors.forename: D Y
authors.initials: DY
authors.lastname: Kim
authors.forename: J R
authors.initials: JR
authors.lastname: Kim
authors.forename: H W
authors.initials: HW
authors.lastname: Taylor
authors.forename: Y S
authors.initials: YS
authors.lastname: Lee
mesh_terms: D000818:Animals; D002371:Cat Diseases; D002415:Cats; D004283:Dog Diseases; D004285:Dogs; D005260:Female; D007070:Immunoglobulin A / Q000032:analysis; D008228:Lymphoma, Non-Hodgkin / Q000000981:diagnostic imaging / Q000473:pathology / Q000503:physiopathology / Q000662:veterinary*; D010052:Ovariectomy; D013902:Radiography, Thoracic; D014134:Tracheal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000503:physiopathology / Q000662:veterinary*
chemical_list: D007070:Immunoglobulin A