title: Avian mycobacteriosis in three horses.
abstract: The clinical, bacteriologic and pathologic findings of three adult horses suffering from avian tuberculosis are presented. Chronic weight loss and hypoproteinemia were pertinent clinical abnormalities in all three horses. Gross pathologic lesions were characterized by chronic enterocolitis with mesenteric lymphadenopathy in two horses and hepatic granulomas in the third horse. The microscopic diagnoses were chronic, non-caseating granulomatous enterocolitis, and necrotizing, non-mineralizing granulomatous hepatitis, respectively. All three horses had granulomatous lymphadenitis of mesenteric lymph nodes with varying degrees of non-mineralizing, coagulation necrosis. Various serotypes of the Mycobacterium avium-intracellulare complex were isolated from selected tissues and feces.
authors.affiliation: Department of Comparative and Experimental Pathology, College of Veterinary Medicine, University of Florida, Gainesville 32610.
authors.forename: C D
authors.initials: CD
authors.lastname: Buergelt
authors.forename: S L
authors.initials: SL
authors.lastname: Green
authors.forename: I G
authors.initials: IG
authors.lastname: Mayhew
authors.forename: J H
authors.initials: JH
authors.lastname: Wilson
authors.forename: A M
authors.initials: AM
authors.lastname: Merritt
mesh_terms: D000818:Animals; D003424:Crohn Disease / Q000473:pathology / Q000662:veterinary; D005260:Female; D006099:Granuloma / Q000382:microbiology / Q000473:pathology / Q000662:veterinary; D006520:Hepatitis, Animal / Q000382:microbiology / Q000473:pathology; D006734:Horse Diseases / Q000382:microbiology / Q000473:pathology*; D006736:Horses; D007019:Hypoproteinemia / Q000662:veterinary; D008198:Lymph Nodes / Q000382:microbiology / Q000473:pathology / Q000648:ultrastructure; D008297:Male; D008640:Mesenteric Lymphadenitis / Q000382:microbiology / Q000473:pathology / Q000662:veterinary; D009162:Mycobacterium avium / Q000302:isolation & purification; D014376:Tuberculosis / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*