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Query: UMLS:C0014070 (encephalomyelitis)
 13,017 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Donkeys experimentally infected with Trypanosoma brucei showed dullness, weakness, fever, inappetence, conjunctivitis, tachycardia and polydyspnoea soon after detectable parasitaemia. The parasitaemia was generally low with transient high peaks except in the terminal stage when there was sustained high parasitaemia. A moderate anaemia was present as from the second week of infection but it was not progressive. There was a marked leucopoenia within 24 h of patent parasitaemia. Death occurred 2 to 2 1/2 months after infection and at necropsy there was severe emaciation as well as mild serous effusion. Histologically, there was a nonsuppurative encephalomyelitis, cranial neuritis, extensive haemosiderosis, hyperplasia of follicles in lymph nodes and spleen and giant cell reaction in lymph nodes. Trypanosomes were present in the cerebrospinal fluid, the eye and serous effusions. These observations are similar to those previously reported in other animals infected with T. brucei.
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PMID:Clinical, haematological and pathological studies in donkeys experimentally infected with Trypanosoma brucei. 90 95

The results of pathological, virological and polymerase chain reaction examinations carried out on 35 mute swans (Cygnus olor) that succumbed to a highly pathogenic avian influenza virus (H5N1) infection during an outbreak in Southern Hungary are reported. The most frequently observed macroscopic lesions included: haemorrhages under the epicardium, in the proventricular and duodenal mucosa and pancreas; focal necrosis in the pancreas; myocardial degeneration; acute mucous enteritis; congestion of the spleen and lung, and the accumulation of sero-mucinous exudate in the body cavity. Histopathological lesions comprised: lymphocytic meningo-encephalomyelitis accompanied by gliosis and occasional perivascular haemorrhages; multi-focal myocardial necrosis with lympho-histiocytic infiltration; pancreatitis with focal necrosis; acute desquamative mucous enteritis; lung congestion and oedema; oedema of the tracheal mucosa and, in young birds, the atrophy of the bursa of Fabricius as a result of lymphocyte depletion and apoptosis. The observed lesions and the moderate to good body conditions were compatible with findings in acute highly pathogenic avian influenza infections of other bird species reported in the literature. Skin lesions and lesions typical for infections caused by strains of lower pathogenicity (low pathogenic avian influenza virus) such as emaciation or fibrinous changes in the reproductive and respiratory organs, sinuses and airsacs were not observed. The H5N1 subtype avian influenza virus was isolated in embryonated fowl eggs from all cases and it was identified by classical and molecular virological methods.
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PMID:Pathobiology of highly pathogenic avian influenza virus (H5N1) infection in mute swans (Cygnus olor). 1749 39

Encephalomyelitis due to Toxoplasma gondii was diagnosed in a fossa (Cryptoprocta ferox). The animal had ataxia, atrophy of hind limb muscles and progressive wasting before dying 12 months after the onset of clinical signs. Toxoplasmosis was suspected antemortem based on clinical signs and the detection of T. gondii DNA by PCR on EDTA-blood from live animal. Necropsy revealed necrotizing gastritis and severe emaciation. The main histological lesions included non-suppurative encephalomyelitis, with dilation of myelin sheaths and swollen axons in the spinal cord, and multifocal gliosis in the brain with intralesional protozoan cysts that stained positive for T. gondii immunohistochemistry. To the authors' knowledge, this is the first report of toxoplasmosis in a fossa, and a new host record.
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PMID:Encephalomyelitis by Toxoplasma gondii in a captive fossa (Cryptoprocta ferox). 2320 Jul 49