000133103 001__ 133103 000133103 005__ 20240711085511.0 000133103 0247_ $$2doi$$a10.1177/03009858241235393 000133103 0248_ $$2sideral$$a137877 000133103 037__ $$aART-2024-137877 000133103 041__ $$aeng 000133103 100__ $$aPérez, Estela$$uUniversidad de Zaragoza 000133103 245__ $$aMannheimia haemolytica associated fibrinonecrotizing abomasitis in lambs 000133103 260__ $$c2024 000133103 5060_ $$aAccess copy available to the general public$$fUnrestricted 000133103 5203_ $$aMannheimia haemolytica–associated abomasitis has been clinically described as a cause of sudden death in lambs, but it is poorly characterized. We describe the pathological features of a severe fibrinonecrotizing abomasitis in 3 lambs that died suddenly. All 3 abomasums had a thickened submucosa due to edema and necrotic areas delimited by bands of degenerate neutrophils with slender nuclei (oat cells) and angiocentric distributions. The overlying mucosa was congested. Myriads of gram-negative coccobacilli were observed within the oat cell bands. M. haemolytica was isolated from the abomasum in all 3 animals and was serotyped as A2 in one of them. Pericarditis and pleuritis were observed in 2 of the lambs. Clostridium spp. were isolated in 1 lamb and detected by immunohistochemistry in the 3 animals, suggesting clostridial co-infection. M. haemolytica should be considered among the differential diagnoses of necrotizing abomasitis in lambs. 000133103 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/ 000133103 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000133103 700__ $$aUzal, Francisco A. 000133103 700__ $$ade Miguel, Ricardo 000133103 700__ $$0(orcid)0000-0002-2685-1730$$aRodríguez-Largo, Ana 000133103 700__ $$aReséndiz, Raúl 000133103 700__ $$aStreitenberger, Nicolás 000133103 700__ $$aMacías-Rioseco, Melissa 000133103 700__ $$aGómez, Álex$$uUniversidad de Zaragoza 000133103 700__ $$aCalvo-Sánchez, Natalia 000133103 700__ $$0(orcid)0000-0002-8133-2124$$aPérez, Marta$$uUniversidad de Zaragoza 000133103 700__ $$0(orcid)0000-0002-2053-9842$$aLuján, Lluís$$uUniversidad de Zaragoza 000133103 700__ $$aAsín, Javier 000133103 7102_ $$11009$$2773$$aUniversidad de Zaragoza$$bDpto. Patología Animal$$cÁrea Sanidad Animal 000133103 7102_ $$11001$$2025$$aUniversidad de Zaragoza$$bDpto. Anatom.,Embri.Genét.Ani.$$cÁrea Anatom.Anatom.Patológ.Com 000133103 773__ $$g61, 4 (2024), 604-608$$pVet. pathol.$$tVeterinary Pathology$$x0300-9858 000133103 8564_ $$s873450$$uhttps://zaguan.unizar.es/record/133103/files/texto_completo.pdf$$yVersión publicada 000133103 8564_ $$s2875816$$uhttps://zaguan.unizar.es/record/133103/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000133103 909CO $$ooai:zaguan.unizar.es:133103$$particulos$$pdriver 000133103 951__ $$a2024-07-11-08:52:28 000133103 980__ $$aARTICLE