Meningomyelitis due to nematode infection in four cats

Gómez, Marcelo; Mieres, Marcelo; Moroni, Manuel; MORA, ALBA NAVARRO; Barrios, N.; Simeone, Claire; Lindsay, David S.

doi:10.1016/j.vetpar.2010.02.039

Cited by 21 publications

(88 citation statements)

References 15 publications

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“…But a nematode parasite was not found. This is the third report of the presence of Gurltia paralysans in South America (BOWMAN et al, 2002;GÓMEZ et al, 2010).…”

Section: Discussionmentioning

confidence: 71%

“…An outbreak of feline parasitic meningomyelitis similar to the case described here has recently been reported in Chile. The causative agent was also identified as Gurltia paralysans (GÓMEZ et al, 2010). G. paralysans belongs to the superfamily Metastrongyloidea, family Angiostrongylidae and was first described by Wolffhügel in 1933(BOWMAN et al, 2002BOWMAN;GEORGI, 2008).…”

Section: Discussionmentioning

confidence: 99%

“…There are other reports of migration of larvae of this parasite to the eyeball, cerebellum and spinal cord, with the presence of adult worms in lungs of dogs (PERRY et al, 1991 (DVIR et al, 2007). In 2010, cases of meningomyelitis in cats in Chile were caused by migration of a metastrongyle (GÓMEZ et al, 2010). Furthermore, there have been reports of lesions caused by migrating insect larvae such as Cuterebra in cats, which histopathological examination revealed superficial laminar cerebrocortical necrosis, larval paths and astrogliosis (GLASS et al, 1998).…”

Section: Introductionmentioning

confidence: 96%

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Parasite meningomyelitis in cats in Uruguay

Rivero

Matto

Adrien

et al. 2011

Rev. Bras. Parasitol. Vet.

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Two outbreaks of progressive hind limb paresis in cats (Felis catus) caused by parasitic meningomyelitis in Uruguay are reported. The case studies occurred in 2008 and 2009 respectively, in the rural areas of Fray Bentos (33° 07' 40.39" S) and were characterized by hindquarter paralysis. This paralysis was progressive and had a chronic progression of approximately 12 months until the death or euthanasia of the animals. Clinical symptoms started with ataxia of the hindquarters with lateral side-to-side swaying and culminated in total paralysis. Two animals were sent for necropsy in 2009. The main histopathological findings were severe myelitis in the lumbar spinal cord with perivascular cuffing and white matter necrosis, severe nonsuppurative meningitis with thrombi in subarachnoid blood vessels, and intravascular presence of multiple adult parasites. From the morphological characteristics of the parasites and location in the leptomeninges, the parasite was identified as the nematode Gurltia paralysans.Keywords: Parasite myelitis, migratory parasites, diseases of spinal cord, Gurltia paralysans. ResumoSão relatados dois surtos de paralisia progressiva dos membros posteriores em gatos (Felis catus), causada por meningomielite parasitária no Uruguai. Os estudos de casos ocorreram entre os anos 2008 e 2009, respectivamente, nas zonas rurais de Fray Bentos (33° 07' 40,39" S) e foram caracterizados por paralisia dos membros posteriores. Esta paralisia era progressiva e tinha evolução crônica de aproximadamente 12 meses, até que os animais vinham a óbito ou eram eutanasiados. Os sintomas clínicos começaram com ataxia dos membros posteriores, com movimentos laterais, terminado em paralisia total. Em 2009, dois animais foram encaminhados para necropsia. Os achados histopatológicos foram caracterizados por severa mielite na medula espinhal lombar com manguitos perivasculares linfocitarios e necrose da substância branca, severa meningite não supurativa com trombos nos vasos sanguíneos subaracnóideos, e presença intravascular de múltiplos parasitos adultos. De acordo com as características morfológicas dos parasitos e localização nas leptomeninges, este foi identificado como um nematóide da espécie Gurltia paralysans.Palavras-chave: Mielite parasitária, parasitas migratórios, enfermidades da medula espinal, Gurltia paralysans.

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“…But a nematode parasite was not found. This is the third report of the presence of Gurltia paralysans in South America (BOWMAN et al, 2002;GÓMEZ et al, 2010).…”

Section: Discussionmentioning

confidence: 71%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

See 1 more Smart Citation

Parasite meningomyelitis in cats in Uruguay

Rivero

Matto

Adrien

et al. 2011

Rev. Bras. Parasitol. Vet.

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“…Esse parasito é apenas ocasionalmente citado em livros de patologia veterinária (Jones et al 2000, Maxie & Youssef 2007 ou parasitologia (Levine 1968, Bowman et al 2002 e, portanto, desconhecido da maior parte dos clínicos, patologistas e parasitologistas veterinários. Desde sua descoberta, a doença permaneceu esquecida, porém, a partir de 2010, novos casos foram descritos nesse país (Gómez et al 2010, Moroni et al 2012. Aparentemente a doença ocorria exclusivamente no Chile, no entanto, em 2011, casos foram relatados no Uruguai (Rivero et al 2011) e na Argentina (Guerrero et al 2011).…”

Section: Discussionunclassified

Aspectos epidemiológicos, clínicos e anatomopatológicos da infecção por Gurltia paralysans em gatos

et al. 2013

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ABSTRACT.-Togni M., Panziera W., Souza T.M., Oliveira Filho J.C., Mazzanti A., Barros C.S. In the last 20 years, an unknown neurological disease affected cat populations in the Western Border Region of the State of Rio Grande do Sul, Brazil. The onset of the disease was characterized by tail paralysis, followed by progressive paraparesis in the pelvic limbs, difficulty in ambulation and proprioceptive ataxia. After long prolonged clinical courses (12-24 months), when then affected cats became severely paraparetic and start to develop pressure sores do to decubitus, they were destroyed by the owners. At necropsy there were variable degrees of skeletal muscle atrophy of the pelvic muscles and some degree of reddening of the meninges at the level of T10-L7, due to the presence of a myriad of small blood vessels, as a typical varicose lesion that resembled a vascular hamartoma. Histologically, such lesions consisted of distension of the subarachnoid space due to a collection of dilated, blood-filled, tortuous blood vessels the lumina of which were occasionally partially or completely occluded by thrombi. Those varices were randomly surrounded by a lymphocytic or granulomatous inflammatory infiltrate with small foci of mature eosinophils. In the lumina of these varicose venules cross and longitudinal sections of nematode parasites could be observed. Based on the morphology of these parasites, in their anatomical localization (meningeal blood vessels) and in the species (cat) affected the nematode was identified as Gurltia paralysans. This paper describes detailed aspects of the epidemiology, clinical disease and pathology of this intriguing feline myelopathy and the definitive diagnosis of the condition: Feline crural parasitic paraplegia, a disease first described in Chile in the 1930's and now, for the first time, in Brazil. RESUMO.-Nos últimos 20 anos, uma doença neurológica desconhecida acometeu populações de gatos da Região da Campanha do RS e tornou-se um desafio diagnóstico para os veterinários locais. Os gatos afetados desenvolviam inicialmente paralisia da cauda, seguida de paraparesia progressiva nos membros pélvicos, alteração da marcha, posição plantígrada e ataxia proprioceptiva. Após longos períodos de evolução clínica (12-24 meses), quando se tornavam marcadamente paraparéticos e começavam a apresentar escaras de decúbito, eram sacrificados pelos proprietários. Na necropsia, demonstravam graus variados de atrofia dos músculos pélvicos e algum grau de avermelhamento das meninges entre T10 e L7, devido à presença de miríades

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“…However, aberrant parasite migration into atypical sites such as the nervous, reproductive, urinary, or skeletal systems can also occur and can induce inappropriate tissue injury. Several previous publications in the veterinary medical literature have reported such aberrant parasite distribution affecting the spinal cord (Gomez et al 2010;Johnson et al 2010), brain (Tanabe et al 2007), kidney (Aresu et al 2007), eye (Dantas-Torres et al 2009) and joint spaces (Hodges and Rishniw 2008). From these reports, a variety of important differential diagnoses have evolved concerning the clinical signs and pathologic lesions that can develop due to aberrant parasitic life cycles.…”

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confidence: 99%

Granulomatous metritis caused by suspected Dirofilaria immitis in a dog: a case report

Park¹,

Kim²,

Lee³

et al. 2013

Vet. Med. - Czech

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ABSTRACT:Here we describe a unique uterine mass in a dog with granulomatous lesions caused by filarial larvae from the family Onchocercidae. An 8-year-old female Maltese was presented to a local animal hospital with anorexia, depression, and vaginal discharge. A markedly distended uterus was observed on lateral abdominal radiographs, leading to a clinical diagnosis of pyometra or uterine mass of an unknown origin. During surgery, the left uterine horn contained a 5 cm diameter mass adhered to adjacent soft tissue. On gross inspection, the mass contained numerous white nematodes. Microscopically, this mass was characterised by a granulomatous inflammation of the myometrium and endometrium. Because all of the nematodes were dead, definitive species identification was not possible. However, based on the histologic appearance, these nematodes were tentatively identified as Dirofilaria immitis larvae.

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Meningomyelitis due to nematode infection in four cats

Cited by 21 publications

References 15 publications

Parasite meningomyelitis in cats in Uruguay

Parasite meningomyelitis in cats in Uruguay

Aspectos epidemiológicos, clínicos e anatomopatológicos da infecção por Gurltia paralysans em gatos

Granulomatous metritis caused by suspected Dirofilaria immitis in a dog: a case report

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