title: Visceral granulomas in chickens infected with a filamentous bacteria.
abstract: Visceral granulomas containing gram-positive filamentous bacteria were diagnosed in eight chickens collected from processing plants over a period of 4 years. Formalin-fixed tissues were submitted from the chickens after slaughter, but no specimens suitable for bacterial culture were received. The bacteria lacked similar tinctorial, morphologic, and ultrastructural features of other gram-positive bacteria that have been identified in chickens. The bacteria were visible with hematoxylin and eosin and faintly visible with Gomori methenamine-silver, but negative with periodic acid-Schiff and Fite-Faraco acid-fast stains. Granulomas were found in the liver, spleen, and peritoneum.
authors.affiliation: Clemson University Animal Diagnostic Laboratory, Columbia, South Carolina 29224.
authors.forename: J E
authors.initials: JE
authors.lastname: Hill
authors.forename: L C
authors.initials: LC
authors.lastname: Kelley
authors.forename: K A
authors.initials: KA
authors.lastname: Langheinrich
mesh_terms: D000818:Animals; D002645:Chickens; D005260:Female; D006094:Gram-Positive Bacteria / Q000302:isolation & purification / Q000648:ultrastructure; D016908:Gram-Positive Bacterial Infections / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D006099:Granuloma / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D008099:Liver / Q000382:microbiology / Q000473:pathology / Q000648:ultrastructure; D008107:Liver Diseases / Q000382:microbiology / Q000473:pathology / Q000662:veterinary; D008264:Macrophages / Q000382:microbiology / Q000648:ultrastructure; D008297:Male; D008854:Microscopy, Electron; D010537:Peritoneum / Q000382:microbiology / Q000473:pathology; D010538:Peritonitis / Q000382:microbiology / Q000473:pathology / Q000662:veterinary; D011201:Poultry Diseases / Q000382:microbiology / Q000473:pathology*; D013154:Spleen / Q000382:microbiology / Q000473:pathology; D013158:Splenic Diseases / Q000382:microbiology / Q000473:pathology / Q000662:veterinary