title: Penile prolapse and urethral obstruction secondary to lymphosarcoma of the penis in a dog.
abstract: A 5-year-old Chihuahua presented for clinical signs of dysuria and penile prolapse. Radiographic studies identified a urethral obstruction distal to the junction of the proximal and middle third of the os penis that appeared to be secondary to swelling of the penis. Penile resection combined with a scrotal urethrostomy was performed. Histopathological examinations of tissue samples of the body of the penis revealed lymphosarcoma. Lymphosarcoma of the penis is a rare finding in all species. It can occur as a primary tumor of the penis in dogs. Penile lymphosarcoma should be considered in the differential diagnosis of dogs affected with penile prolapse and dysuria.
authors.affiliation: Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Purdue University, West Lafayette, Indiana 47907, USA.
authors.forename: G M
authors.initials: GM
authors.lastname: Michels
authors.forename: D W
authors.initials: DW
authors.lastname: Knapp
authors.forename: M
authors.initials: M
authors.lastname: David
authors.forename: G C
authors.initials: GC
authors.lastname: Lantz
authors.forename: T A
authors.initials: TA
authors.lastname: Munjar
authors.forename: W E
authors.initials: WE
authors.lastname: Blevins
authors.forename: D B
authors.initials: DB
authors.lastname: DeNicola
mesh_terms: D000818:Animals; D003645:Death, Sudden / Q000662:veterinary; D003937:Diagnosis, Differential; D004283:Dog Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D004285:Dogs; D008228:Lymphoma, Non-Hodgkin / Q000150:complications / Q000175:diagnosis / Q000662:veterinary*; D008297:Male; D010412:Penile Neoplasms / Q000150:complications / Q000175:diagnosis / Q000662:veterinary*; D011391:Prolapse; D011859:Radiography; D014524:Urethral Obstruction / Q000209:etiology / Q000662:veterinary*