Proliferative vasculopathy and cutaneous hemorrhages in porcine neonates infected with the porcine reproductive and respiratory syndrome virus.
Vet Pathol
; 38(3): 339-42, 2001 May.
Article
em En
| MEDLINE
| ID: mdl-11355668
Severe cutaneous hemorrhages with dermal and subcutaneous capillary angioplasia were seen in aborted and stillborn piglets, concurrently with an acute outbreak of porcine reproductive and respiratory syndrome virus (PRRSV) abortions. Histologically, the lesions consisted of angioblastic endothelial cells and immature capillary vascular structures coursing through the edematous myxomatous dermis and subcutis. Proliferating capillaries often were surrounded by large and foamy macrophages that stained positively for PRRSV by immunohistochemistry. The sudden appearance of these vascular lesions during the PRRSV outbreak and their abrupt disappearance after the abortion storm, along with the immunohistochemical localization of PRRSV-positive macrophages adjacent to the proliferating capillaries, suggest that PRRSV likely played a role in the development of these unusual lesions.
Buscar no Google
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Dermatopatias
/
Doenças Vasculares
/
Vírus da Síndrome Respiratória e Reprodutiva Suína
/
Síndrome Respiratória e Reprodutiva Suína
/
Hemorragia
Limite:
Animals
Idioma:
En
Revista:
Vet Pathol
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Estados Unidos