Histopathological changes in the coeliaco-mesenteric ganglia of horses with 'mal seco', a grass sickness-like syndrome, in Argentina.

Francisco A Uzal, C. A. Robles, F. V. Olaechea

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

'Mal seco' is a grass sickness-like syndrome of horses in Argentina. A histopathological study was made of the coeliaco-mesenteric ganglia of four horses with 'mal seco' and of four horses that died from other causes. The severity and extent of the lesions found in the horses with 'mal seco' was greatest in the two with the shortest clinical course. Degenerative changes consisted mainly in the loss of Nissl substance, cytoplasmic vacuoles, neuronophagia, intercellular and intracytoplasmic eosinophilic bodies, and pyknotic and eccentric nuclei. The coeliaco-mesenteric ganglia of the control horses had no histological lesions. The histological lesions in the horses with 'mal seco' were very similar to those described in the coeliaco-mesenteric ganglia of horses with grass sickness in Europe and it is suggested that 'mal seco' and grass sickness may be the same disease.

Original languageEnglish (US)
Pages (from-to)244-246
Number of pages3
JournalVeterinary Record
Volume130
Issue number12
StatePublished - Mar 21 1992
Externally publishedYes

ASJC Scopus subject areas

  • veterinary(all)

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