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1.
Ci. Rural ; 51(7)2021. ilus
Article in English | VETINDEX | ID: vti-31181

ABSTRACT

A domestic cat was submitted to necropsy with a small abscess within the subcutaneous tissue and skeletal muscles dorsal to the left ear. It contained multiple 0.8 to 1.2 cm-long adult nematodes and was drained by two cutaneous fistulae. On histopathology, multiple cavitary areas within the skeletal muscles and subcutaneous tissue contained adult nematodes and were surrounded by thick fibrotic and chronic-active inflammatory reaction. The parasites were externally lined by a smooth cuticle and had two prominent lateral alae. They contained an intestinal tract and a pseudocoelom. A prominent polymyarian-coelomyarian musculature and two large lateral chords were identified, and some sections contained a uterus with multiple non-operculated eggs. Lagochilascariasis should be considered a differential diagnosis for cervical skin abscesses in domestic cats from Southern Brazil. This article brings important contributions to the clinical and anatomopathologic diagnosis of this rare zoonotic disease.(AU)


Um gato doméstico foi submetido à necropsia com um pequeno abscesso no tecido subcutâneo e musculatura esquelética dorsal ao ouvido esquerdo. Continha vários nematódeos adultos de 0,8 a 1,2 cm de comprimento e foi drenado por duas fístulas cutâneas. Na histopatologia, múltiplas áreas cavitárias coalescentes dentro dos músculos esqueléticos e tecido subcutâneo continham nematódeos adultos e eram circundadas por espessa reação inflamatória fibrótica e crônica ativa. Os parasitas eram revestidos externamente por uma cutícula lisa e tinham duas asas laterais proeminentes. Eles continham um trato intestinal e um pseudoceloma. Uma musculatura polimiariana proeminente e duas grandes cordas laterais foram identificadas, e algumas seções continham um útero com múltiplos óvulos não operculados. A lagoquilascaríase deve ser considerada um diagnóstico diferencial para abscessos cutâneos cervicais em gatos domésticos do Sul do Brasil. Esse artigo traz importantes contribuições para o diagnóstico clínico e anatomopatológico dessa rara doença zoonótica.(AU)


Subject(s)
Animals , Female , Cats , Cats/pathology , Cats/parasitology , Nematoda/growth & development , Nematoda/parasitology
2.
Ciênc. rural (Online) ; 51(7): e20200853, 2021. graf
Article in English | LILACS-Express | LILACS | ID: biblio-1249536

ABSTRACT

ABSTRACT: A domestic cat was submitted to necropsy with a small abscess within the subcutaneous tissue and skeletal muscles dorsal to the left ear. It contained multiple 0.8 to 1.2 cm-long adult nematodes and was drained by two cutaneous fistulae. On histopathology, multiple cavitary areas within the skeletal muscles and subcutaneous tissue contained adult nematodes and were surrounded by thick fibrotic and chronic-active inflammatory reaction. The parasites were externally lined by a smooth cuticle and had two prominent lateral alae. They contained an intestinal tract and a pseudocoelom. A prominent polymyarian-coelomyarian musculature and two large lateral chords were identified, and some sections contained a uterus with multiple non-operculated eggs. Lagochilascariasis should be considered a differential diagnosis for cervical skin abscesses in domestic cats from Southern Brazil. This article brings important contributions to the clinical and anatomopathologic diagnosis of this rare zoonotic disease.


RESUMO: Um gato doméstico foi submetido à necropsia com um pequeno abscesso no tecido subcutâneo e musculatura esquelética dorsal ao ouvido esquerdo. Continha vários nematódeos adultos de 0,8 a 1,2 cm de comprimento e foi drenado por duas fístulas cutâneas. Na histopatologia, múltiplas áreas cavitárias coalescentes dentro dos músculos esqueléticos e tecido subcutâneo continham nematódeos adultos e eram circundadas por espessa reação inflamatória fibrótica e crônica ativa. Os parasitas eram revestidos externamente por uma cutícula lisa e tinham duas asas laterais proeminentes. Eles continham um trato intestinal e um pseudoceloma. Uma musculatura polimiariana proeminente e duas grandes cordas laterais foram identificadas, e algumas seções continham um útero com múltiplos óvulos não operculados. A lagoquilascaríase deve ser considerada um diagnóstico diferencial para abscessos cutâneos cervicais em gatos domésticos do Sul do Brasil. Esse artigo traz importantes contribuições para o diagnóstico clínico e anatomopatológico dessa rara doença zoonótica.

3.
Am J Med Sci ; 359(4): 235-241, 2020 04.
Article in English | MEDLINE | ID: mdl-31959368

ABSTRACT

A Mexican 24-year-old male patient was referred to our hospital due to increased left retroauricular volume with skin fistulisation, resembling an infection by the uncommon worm Lagochilascaris minor. The patient was submitted to lateral skull base surgery. No adult worms or eggs were observed during light and scanning electron microscopy analysis, as well as by histopathologic examination of the small piece of removed tissue, only L3 stage larvae of Lagochilascaris spp. were identified. Polymerase chain reaction-sequencing assays were performed using primers for the mitochondrial 12S and the nuclear 18S rDNA gene. DNA of some L minor adults, previously identified, were used as control. The molecular analysis identified the worm as L minor. According to previous reports, lagochilascariasis is a complicated infection that requires an interdisciplinary management by different clinical specialists. This is the first time that 12S and 18S rDNA genes are reported as molecular markers for diagnosis of L minor.


Subject(s)
Ascaridida Infections/diagnosis , Ascaridoidea/isolation & purification , DNA, Helminth/analysis , Animals , Ascaridida Infections/parasitology , Ascaridoidea/ultrastructure , DNA, Ribosomal/analysis , Humans , Male , Mexico , Microscopy, Electron, Scanning , Polymerase Chain Reaction , Young Adult
4.
Rev. bras. parasitol. vet ; 28(4): 812-815, Oct.-Dec. 2019. tab, graf
Article in English | LILACS | ID: biblio-1057991

ABSTRACT

Abstract Lagochilascariasis is a parasitic disease caused by nematodes of the genus Lagochilascaris. These parasites occur in the neotropical region and their definitive hosts are wild animals, domestic dogs and felids and, accidentally, humans. Here, infection by Lagochilascaris minor is recorded for the first time in a wild felid, in Brazil.


Resumo A lagochilascaríase é uma doença parasitária causada por nematoides do gênero Lagochilascaris. Com distribuição neotropical, este parasito tem como hospedeiros definitivos animais silvestres, canídeos e felídeos domésticos e, acidentalmente, seres humanos. Registra-se a primeira ocorrência de Lagochilascaris minor em um felídeo silvestre no Brasil.


Subject(s)
Animals , Male , Female , Ascaridoidea/isolation & purification , Panthera/parasitology , Ascaridoidea/anatomy & histology , Ascaridoidea/classification , Brazil , Animals, Wild
5.
Emerg Infect Dis ; 25(12): 2331-2332, 2019 12.
Article in English | MEDLINE | ID: mdl-31742532

ABSTRACT

Lagochilascariasis is a rare helminthic infection caused by Lagochilascaris minor nematodes and found in Latin America; most cases are reported in the Amazon region. We report on a case observed in a hunter in southern Brazil and describe scanning electron microscopy results for L. minor adult forms.


Subject(s)
Ascaridida Infections/diagnosis , Ascaridida Infections/parasitology , Ascaridoidea , Animals , Anthelmintics/pharmacology , Anthelmintics/therapeutic use , Ascaridida Infections/drug therapy , Ascaridida Infections/epidemiology , Ascaridoidea/isolation & purification , Ascaridoidea/ultrastructure , Biopsy , Brazil/epidemiology , Humans , Male , Middle Aged , Treatment Outcome
6.
R. bras. Parasitol. Vet. ; 28(4): 812-815, 2019. ilus, tab
Article in English | VETINDEX | ID: vti-25482

ABSTRACT

Lagochilascariasis is a parasitic disease caused by nematodes of the genus Lagochilascaris. These parasites occur in the neotropical region and their definitive hosts are wild animals, domestic dogs and felids and, accidentally, humans. Here, infection by Lagochilascaris minor is recorded for the first time in a wild felid, in Brazil.(AU)


A lagochilascaríase é uma doença parasitária causada por nematoides do gênero Lagochilascaris. Com distribuição neotropical, este parasito tem como hospedeiros definitivos animais silvestres, canídeos e felídeos domésticos e, acidentalmente, seres humanos. Registra-se a primeira ocorrência de Lagochilascaris minor em um felídeo silvestre no Brasil.(AU)


Subject(s)
Animals , Felidae/parasitology , Ascaridida Infections/classification , Ascaridida Infections/diagnosis
7.
J. Bras. Patol. Med. Lab. (Online) ; 54(4): 245-248, July-Aug. 2018. graf
Article in English | LILACS | ID: biblio-954399

ABSTRACT

ABSTRACT An unusual case of parasitism by Lagochilascaris minor infection is reported in a 38-year-old woman from Paraupebas, Pará, Brazil. The article summarizes the main characteristics of the disease and its etiological agent, including prevalence, life cycle, clinical course and treatment.


RESUMO Relata-se um caso de infecção por Lagochilascaris minor, parasitose incomum, em mulher de 38 anos de idade, procedente de Paraupebas, Pará, Brasil. O artigo resume as principais características da doença e de seu agente etiológico, incluindo prevalência, ciclo de vida, curso clínico e tratamento.

8.
Rev. Inst. Med. Trop. Säo Paulo ; Rev. Inst. Med. Trop. Säo Paulo;50(6): 355-358, Nov.-Dec. 2008. ilus
Article in English | LILACS | ID: lil-499802

ABSTRACT

A case report of a 31 year-old woman from Paraíba State (North-Eastern Brazil) that presented severe involvement of ocular globes, ears and meninges. Diagnosis was established after enucleation of her left eye, when adult worms were seen in the midst of a granulomatous inflammatory process. Her response to the initial treatment with levamisole and cambendazole was good, but there was a relapse after the fifth month of treatment even with maintenance doses of both medications. She later received ivermectin and albendazol and responded well.


Paciente do sexo feminino, com 31 anos, procedente da Paraíba, apresentava envolvimento severo de ambos os globos oculares, com perda da visão à esquerda, comprometimento da audição e das meninges. Após enucleação do olho esquerdo fragmento de helminto identificado como Lagochilascaris minor foi observado em processo inflamatório granulomatoso. Inicialmente a paciente foi tratada com levamisol e cambendazol, com bom resultado. Verificou-se, todavia, piora do quadro após cinco meses, com eliminação de larvas do ascarídeo em lesão presente na órbita esquerda, embora a medicação fosse mantida com administração periódica. Houve boa resposta terapêutica, com regressão do quadro, após substituição dos anti-helmínticos anteriores pela associação ivermectina e albendazol.


Subject(s)
Adult , Animals , Female , Humans , Ascaridida Infections/parasitology , Ascaridoidea/isolation & purification , Eye Infections, Parasitic/parasitology , Hearing Loss, Unilateral/parasitology , Meninges/parasitology , Antiparasitic Agents/therapeutic use , Ascaridida Infections/diagnosis , Ascaridida Infections/therapy , Ascaridoidea/classification , Eye Enucleation , Eye Infections, Parasitic/diagnosis , Eye Infections, Parasitic/therapy , Severity of Illness Index
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