Premium
Cluster of cases of malignant schwannoma in cattle
Author(s) -
Murcia P. R.,
Delhon G.,
González M. J.,
Vilas M.,
RamosVara J. A.,
De Las Heras M.,
Nordhausen R. W.,
Uzal F. A.
Publication year - 2008
Publication title -
veterinary record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.261
H-Index - 99
eISSN - 2042-7670
pISSN - 0042-4900
DOI - 10.1136/vr.163.11.331
Subject(s) - schwannoma , paresis , ataxia , cluster (spacecraft) , pathology , etiology , biology , medicine , surgery , neuroscience , computer science , programming language
Between 1998 and 2001, several cases of ataxia and paresis followed by recumbency and death were reported in cows from different farms in a restricted area of the Argentinian Patagonia. Five cases of this cluster were studied and a diagnosis of malignant schwannoma was established. Electron microscopy ( em ) of tumour samples from three of the animals revealed intracytoplasmic or interstitial structures resembling retroviral particles. Attempts to isolate a viral agent from the tumours were unsuccessful but the epidemiological data and the em findings suggest a viral aetiology.