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1.
J Avian Med Surg ; 29(3): 216-23, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26378668

RESUMO

A 6-week-old, parent-reared peregrine falcon ( Falco peregrinus ) was presented with spastic hypertonus of its hind limbs of unknown origin and duration. Radiologic examination revealed smooth periosteal reactions ventrally at thoracic vertebrae 5 to 7. Contrast-enhanced computed tomography identified the swelling as inflammation; antibiotic, antimycotic, anti-inflammatory, and analgesic treatments were initiated, and vitamins and minerals were supplemented. Because the bird's condition did not improve after 10 days, it was euthanatized and submitted for postmortem examination. On histopathologic examination, chronic, active osteomyelitis was diagnosed in thoracic vertebrae 5 to 7, and chronic, active arthritis was present in both the right shoulder and left elbow joints. Staphylococcus hyicus was isolated from these 3 locations, as well as from lungs and liver, indicating a chronic septic staphylococcosis. Although infections with Staphylococcus species are occasional causes of vertebral osteomyelitis in juvenile poultry with active growth plates, it is only sporadically reported in raptors and companion birds. This case report is the first description of the clinical features and diagnostic and pathologic findings in a juvenile peregrine falcon with hematogenous osteomyelitis and arthritis associated with septicemia caused by S hyicus.


Assuntos
Artrite Infecciosa/veterinária , Doenças das Aves/microbiologia , Falconiformes , Osteomielite/veterinária , Coluna Vertebral/patologia , Infecções Estafilocócicas/veterinária , Staphylococcus hyicus/isolamento & purificação , Animais , Antibacterianos/uso terapêutico , Anti-Inflamatórios não Esteroides/uso terapêutico , Artrite Infecciosa/tratamento farmacológico , Artrite Infecciosa/microbiologia , Artrite Infecciosa/patologia , Doenças das Aves/patologia , Fluoroquinolonas/uso terapêutico , Masculino , Meloxicam , Osteomielite/tratamento farmacológico , Osteomielite/microbiologia , Osteomielite/patologia , Infecções Estafilocócicas/tratamento farmacológico , Infecções Estafilocócicas/microbiologia , Infecções Estafilocócicas/patologia , Tiazinas/uso terapêutico , Tiazóis/uso terapêutico
2.
Vet Pathol ; 49(2): 284-7, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21856871

RESUMO

Several mature Leghorn-type hens with the same genetic background experienced skin and feather problems in a breeder flock. There was almost-total feather loss on the head and neck, as well as thickened, scaly skin, and follicular ostia were plugged with keratin debris. Other individuals exhibited prominent subcutaneous nodules multifocally on the head. Histologic examination of the skin revealed a severe hyperplasia of follicular epithelium with hyperkeratosis and cystic dilation. Numerous clefts and vesicles were detected along the epidermis and follicular epithelium, some containing acantholytic keratinocytes. A mild heterophilic inflammation was associated with these lesions, and few gram-positive cocci were present in the keratin plugs. Bacterial culture of the skin yielded a variable amount of Staphylococcus hyicus. Immunochemistry looking for chicken IgY revealed no intercellular staining in the epidermis or follicular epithelium. All these findings supported a diagnosis of Staphylococcus-associated acantholytic epidermitis and folliculitis. This case suggests that S. hyicus could be a significant pathogen in poultry production. The close genetic relationship among affected individuals could indicate a hereditary predisposition in this line of White Leghorn laying chickens.


Assuntos
Acantólise/veterinária , Galinhas , Foliculite/veterinária , Doenças das Aves Domésticas/microbiologia , Infecções Estafilocócicas/veterinária , Staphylococcus hyicus/isolamento & purificação , Acantólise/diagnóstico , Acantólise/microbiologia , Animais , Epiderme/microbiologia , Epiderme/patologia , Plumas/microbiologia , Plumas/patologia , Feminino , Foliculite/diagnóstico , Foliculite/microbiologia , Doenças das Aves Domésticas/diagnóstico , Infecções Estafilocócicas/complicações
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