Report of rare case of intense parasitism by 34 specimens of Dioctophyme renale in a dog / Relato de caso raro de parasitismo intenso por 34 exemplares de Dioctophyme renale em um cão

Abstract Dioctophymosis is caused by Dioctophyme renale, a nematode that usually affects the right kidney of carnivores. The aim of this study was to report on a case of a dog with progressive weight loss and swollen abdomen that was diagnosed as presenting dioctophymosis. The patient underwent surgical treatment through which 34 nematodes were found, of which 18 were female and 16 were male, with a maximum length of 74 centimeters. The parasites were free in the abdominal cavity and inside the right kidney, and had caused peritonitis, free fluid, severe adherences between the abdominal organs and renal perforation. Parasitic diseases with a high number of specimens of this species are uncommon in dogs. The disease progresses with an inflammatory reaction and consequent formation of adherences and granulomatous tissue. This surrounds the eggs that were eliminated in the abdominal cavity by the free parasites. This disease occurs frequently in the city of Pelotas, Rio Grande do Sul, Brazil, where the patient of this report was living. To the best of authors' knowledge, this is the case with the largest number of specimens of D. renale removed from a single dog in vivo.

Resumo A dioctofimose é causada por Dioctophyme renale, um nematódeo que geralmente afeta o rim direito de carnívoros. Este trabalho objetivou relatar o caso de um cão, com perda de peso progressiva e abaulamento abdominal, diagnosticado com dioctofimose. O paciente foi submetido a tratamento cirúrgico, o que permitiu o achado de 34 nematódeos, sendo 18 fêmeas e 16 machos, com tamanho máximo de 74 centímetros. Os parasitos encontravam-se livres na cavidade abdominal e no interior do rim direito, causando peritonite, formação de líquido livre, intensas aderências entre os órgãos abdominais e uma perfuração renal. Parasitoses com alto número de exemplares dessa espécie são incomuns em cães. Cursam com reação inflamatória, com consequente formação de aderências e tecido granulomatoso, envolvendo os ovos eliminados na cavidade abdominal pelos parasitos livres. A doença é frequente na cidade de Pelotas, Rio Grande do Sul, Brasil, área de origem da paciente afetada. De acordo com a pesquisa realizada, acredita-se que esse é o caso com o maior número de exemplares de D. renale removidos de um cão in vivo.

OCCURRENCE OF Calodium hepaticum (BANCROFT, 1893) MORAVEC, 1982 EGGS IN FECES OF DOGS AND CATS IN LAGES, SANTA CATARINA, BRAZIL

This study aims to report the incidence of Calodium hepaticum among dogs and cats, pets or stray animals, captured by the Zoonosis Control Center (CCZ) in Lages, Santa Catarina, Brazil. Fecal samples from 108 pet dogs and eight pet cats, and from 357 stray dogs and 97 stray cats, captured by CCZ, were analyzed within the period from July 2010 to November 2012. Coproparasitological exams were performed by techniques of sedimentation, centrifuge-flotation, and simple flotation. Among 465 fecal samples from dogs and 105 from cats, the overall spurious infections for C. hepaticum eggs were 1.05%. For dogs, this positivity was 0.43% and for cats it was 3.81%. The two positive dogs were stray and out of the four cats, three were stray and one was a pet. Although the occurrence of C. hepaticum eggs was low, these data reveal the existence of infected rodents, especially in public places, since, out of the six infected animals, five (83.33%) were stray. These results are discussed and analyzed with an emphasis on the risk to public health.

Study of the prevalence of capillaria hepatica in humans and rodents in an urban area of the city of Porto Velho, Rondônia, Brazil / Estudo da prevalência da Capillaria hepatica em humanos e roedores em área urbana da cidade de Porto Velho, Rondônia, Brasil

Introduction: Hepatic capillariosis, caused by Capillaria hepatica (Calodium hepaticum) (Bancroft, 1893), Travassos, 1915 (Nematoda, Trichinelloidea, Capillariidae), is a common zoonosis in rodents but is rare in humans. Seventy-two cases in humans have been reported worldwide since the first case was described by MACARTHUR in 192417,27. This study aimed to determine the prevalence of Capillaria hepatica in humans and rodents in an urban area of Porto Velho, the capital of Rondônia, in Brazil. Methods: After conducting a census of the area, 490 residents were randomly selected, and, after signing a term of consent, provided blood samples that were screened for anti-Capillaria hepatica antibodies. Simultaneously, rats were captured to assess the prevalence of this parasite in rodents by histopathological examination in liver sections. Results: A prevalence of 1.8% was found among residents who had specific antibodies at a dilution of 1:150, indicating exposure to parasite eggs; 0.8% of the subjects also had positive titers at a dilution of 1:400, indicating true infection. The prevalence in rats was 2%. Conclusions: The prevalence of infection with this parasite among humans and rats was low. While the prevalence encountered among humans was within the limits reported in the literature, the prevalence among rodents was much lower.

Introdução: Capilaríase hepática é causada pela Capillaria hepatica (syn. Calodium hepaticum) (Bancroft, 1893), Travassos, 1915 (Nematoda, Trichinelloidea, Capillariidae), sendo uma zoonose comum entre roedores, porém rara em humanos. Setenta e dois casos humanos foram relatados na literatura mundial desde o primeiro caso descrito por MACARTHUR em 192417,27. O objetivo desse estudo é determinar a prevalência da Capillaria hepatica em humanos e roedores de área urbana da cidade de Porto Velho, capital de Rondônia, Brasil. Método: Após realizar um censo da área, 490 moradores foram aleatoriamente selecionados e assinaram termo de consentimento, foram colhidas amostras de sangue para testar anticorpos anti-Capillaria hepatica. Simultaneamente, ratos foram capturados para determinação da prevalência deste parasita através do exame histopatológico em cortes de fígado. Resultados: Foi encontrada entre humanos prevalência de 1,8% de positividade para anticorpos específicos em diluição de 1:150, indicando exposição aos ovos do parasito; 0,8% desses também deram testes positivos quando seus soros sofreram diluição de 1:400, indicando infecção verdadeira. Nos ratos, a prevalência foi de 2%. Conclusão: A prevalência encontrada para o parasito entre homens e roedores foi baixa. Enquanto a prevalência encontrada entre humanos esteve dentro dos limites encontrados na literatura, a prevalência entre roedores foi bem menor.

High occurrence of Calodium hepaticum (syn. Capillaria hepatica) spurious infection in a village in the Atlantic Forest of southern Brazil

Calodium hepaticum (syn. Capillaria hepatica) is a nematode of the Capillariidae family that infects rodents and other mammals. In Brazil, human spurious infections of C. hepaticum have been detected in indigenous or rural communities from the Amazon Basin, but not in the southern states of the country. Here, we report the highest occurrence (13.5% of 37 residents) of C. hepaticum human spurious infection detected in Brazil and the first record in a southern region, Guaraqueçaba. The finding is explained by the area being located in the Atlantic Forest of the state of Paraná, surrounded by preserved forests and because the inhabitants consume the meat of wild mammals.

Dioctophyme renale Goeze, 1782 in a cat with a supernumerary kidney / Dioctophyme renale Goeze, 1782 em gata com rim supranumerário

This study reports a case of parasitism by Dioctophyme renale in a supernumerary kidney and abdominal cavity of a female cat in Brazil. The three-year-old cat of indeterminate breed presented abdominal distension and was taken to the University of Contestado Veterinary Hospital in Canoinhas, state of Santa Catarina, since the owner suspected pregnancy. An ultrasound scan did not confirm pregnancy but revealed parasitism in the kidney. This case is worth reporting because domestic cats are rarely hosts of this nematode species.

Relata-se um caso de parasitismo por Dioctophyme renale em rim supranumerário e em cavidade abdominal de um gato do Brasil. Uma fêmea adulta, não castrada, sem raça definida e com aproximadamente três anos de idade, foi encaminhada ao Hospital Veterinário da Universidade do Contestado, em Canoinhas-SC, com aumento de volume abdominal e o proprietário suspeitava de gestação. Após ultrassonografia foi descartada a gestação e foi detectado parasitismo em rim. Como gatos domésticos são considerados hospedeiros incomuns desse parasita, relata-se o presente caso.

Prevalence of a zoonotic parasite, dioctophyma renale (goeze, 1782), among male canines in a wild riverside area of la plata river, province of Buenos Aires, republic of Argentina

Dioctophymosis is an helminthiasis with an indirect life cycle caused by Dioctophyma renale. It mayaffect both humans and other mammals. The purpose of this study was to determine the prevalenceof the parasite in male canines of different ages, living in a wild riverside area of La Plata River with favourable characteristics for the development of eggs, intermediate or paratenic hosts and completionof the life cycle of D. renale. 171 animals were surveyed and samples were collected through urethral catheterization. The samples were processed by means of centrifugation at a relative centrifugal force of 700 g and microscopic observation of sediments. 42.1 percent of canines exhibitedpatent Dioctophymosis in their kidneys. Male canines between the ages of 2 and 5 showed the highest frequency of positive results. Several epidemiological risk factors are discussed that, whenassociated, might favour the high prevalence of this parasite in the area. The need for equipment for the indirect diagnosis of the disease in canines and other animals prone to infection is clearly demonstrated.

La Dioctofimosis es una helmintiasis de ciclo de vida indirecto causada por Dioctophyma renale. Puede afectar a los seres humanos y diferentes mamíferos. El propósito de este estudio fue determinar la prevalencia del parásito en caninos machos de diferentes edades, que viven en una zona rivereñaal Río de la Plata con características favorables para el desarrollo de los huevos, los huéspedes intermediarios o paraténicos y para el ciclo vida de D. renale. Fueron encuestados 171 animales, se recogieron muestras por medio de sondaje uretral. Las muestras se procesaron por centrifugación a una fuerza centrífuga relativa de 700 g y se observaron los sedimentos microscópicamente. El 42,1 por ciento de los caninos exhibió Dioctofimosis patente en sus riñones. Los caninos de sexo masculino con edades comprendidas entre 2 y 5 años presentaron la mayor frecuencia de resultados positivos. Se discuten varios factores de riesgo epidemiológico que asociados, podrían condicionar la elevada prevalencia de parasitosis en la zona. Se hace evidente la necesidad de equipos para el diagnósticoindirecto de la enfermedad en los caninos y otros animales propensos a infectarse.

Human intestinal capillariasis: A rare case report from non-endemic area (Andhra Pradesh, India).

Human intestinal capillariasis is caused by Capillaria philippinensis. This disease is endemic in Philippines and Thailand. To the best of our knowledge, we report the third case of human intestinal capillariasis from India and the first case from Andhra Pradesh, which is a non-endemic area. A 40-year-old female presented with diarrhoea, vomiting, decreased urinary output, ascitis, pedal oedema, hypoalbuminemia, and electrolyte imbalance. Microscopic examination of stool sample revealed the presence of ova, larvae, and adult worms of C. philippinensis. Patient recovered from the disease after taking albendazole 400 mg daily for 1 month along with supportive treatment.

Primer hallazgo de infección humana por Paracapillaria (Crossicapillaria) philippinensis (Chitwood, Velázquez y Salazar, 1968) en Cuba / First finding of human infection with Paracapillaria (Crosscapillaria) philippinensis (Chitwood, Velázquez y Salazar, 1968) in Cuba

INTRODUCCIÓN: la infección por Paracapillaria philippinensis (Capillaria philippinensis), se caracteriza clínicamente como una enteropatía progresiva, con pérdida masiva de proteínas y un síndrome de malabsorción que puede llegar a ser mortal. OBJETIVO: reportar por primera vez en Cuba el hallazgo de infección humana por P. philippinensis. MÉTODOS: se describió el caso de un paciente de 21 años de edad, del sexo masculino, procedente de Ciudad de La Habana, y que nunca había viajado fuera del país. Ingresa porque después de la ingestión de un pescado empanado comenzó a presentar un cuadro diarreico que se fue intensificando con el transcurrir de los días, llegando a tener más de 15 deposiciones líquidas diarias, abundantes en cantidad, sin flemas ni sangre, acompañado de un cuadro de desnutrición severa, y síntomas generales de astenia y anorexia intensas. RESULTADOS: el diagnóstico de laboratorio confirmó la presencia en heces de huevos de P. philippinensis. CONCLUSIONES: las características clínicas del paciente y el hallazgo de una eosinofilia moderada, coinciden con lo descrito en la literatura. En nuestro conocimiento, este es el primer hallazgo de infección autóctona por P. philippinensis en humanos que se realiza en Cuba, y en el continente americano. Es importante la alerta epidemiológica sobre la posible emergencia de esta parasitosis en nuestra zona geográfica, sobre todo en aquellos lugares donde la costumbre de comer pescado crudo o mal cocido sea parte del contexto cultural.

INTRODUCTION: the infection caused by Paracapillaria philippinensis (Capillaria philippinensis) is clinically characterized as a progressive enteric illness with massive loss of proteins and a malabsorption syndrome that may become fatal. OBJECTIVE: the first report in Cuba of human infection with P. philippinensis. METHODS: the case of a Cuban male patient aged 21 years from the City of Havana, who had never been abroad, was described. This young man was admitted to the hospital because after having eaten one breadcrumb-covered fish, he started having diarrheic episodes that progressively increased up to more than 15 abundant diarrheas per day, without phlegm or blood, and a clinical picture of severe malnutrition and general symptoms of intensive asthenia and anorexia RESULTS: the lab diagnosis confirmed the presence of P. philippinensis eggs in feces. CONCLUSIONS: the clinical features of the patient and the finding of moderate eosinophilia in the hematological study agreed with published information. As far as we know, this is the first finding of a human infection caused by P. philippinensis in Cuba, and in the American continent as well. The epidemiological alert on the possible emergence of new cases of this parasitic infection in our geographic zone is important, mainly in those places where the habit of eating raw or undercooked fish is part of the local culture.

A Case of Gastritis Associated with Gastric Capillariasis

This report is about the case of gastritis associated with capillariasis. The patient was a 52-yr-old Korean woman who occasionally ate raw fish and chicken. She complained of mild abdominal pain and nausea, but not diarrhea. An endoscopic examination revealed an exudative flat erosive change on the gastric mucosa of the antrum. She was microscopically diagnosed as chronic gastritis with numerous eosinophil infiltrations. The sectioned worms and eggs in mucosa were morphologically regarded as belonging to the genus Capillaria. This is the first case of gastric capillariasis reported in the Republic of Korea.

Coproantigen versus EGG antigen in immunodiagnosis of intestinal capillariasis using Western Blot Technique

Capillaria philippinensis is a zoonotic nematode that causes severe diarrheal syndromes in humans. C. philippinensis coproantigen and egg antigen were fractionated using SDS-PAGE. Several protein bands were detected in both antigens. Protein profile of coproantigen of C. philippinensis infected patient included wide range of bands ranging from 10- 180 kD. Protein profile of egg antigen revealed only few bands detected at 10, 34- 36.5, and 148 kD. Using Western blot, a variety of protein bands were recognized by the infected patient serum. When tested against coproantigen, it detected a wide range of antigenic proteins at different molecular weight [10, 14, 34-36.5, 48, 54, 62, 66, 86, 94, and 148 kD respectively]. None of these bands were detected in normal human feces. When tested against egg antigen, the infected patient serum detected only two faint antigenic bands at 62 and 66 kD. It is concluded that coproantigen was more convenient than egg antigen in diagnosis of capillariasis by WB

Human Hepatic Capillariasis: A Second Case Occurred in Korea

No abstract available.

Capillaria hepatica infestation.

Capillaria hepatica is a very rare zoonotic infestation which primarily infests rodents and is rarely found in humans. The presenting features are fever of unknown origin, hepatomegaly and peripheral eosinophilia. Liver biopsy remains the cornerstone of diagnosis. Treatment of choice is Albendazole and outcome is generally good.

The endoscopic-pathologic findings in intestinal capillariais: a case report.

A 27-year-old Thai man presented with chronic watery diarrhea for 2 years. The diagnosis of capillariasis was made by enteroscopy after negative repeated stool tests. Here, the authors reported the first case of abnormal endoscopic finding of intestinal capillariasis. It showed segmental erythematous and swelling of proximal jejunal mucosa with an area of superficial erosion covered by exudates. The parasitic eggs were identified in jejunal content and worms were identified in jejunal mucosa. He was successfully treated with albendazole.

Capilariose hepática em cäes e gatos: 15 casos / Hepatic capillariosis in dogs and cats: 15 cases

Entre 1970 e 1997, de 3.927 cäes e 435 gatos necropsiados, nove cäes (0,23 por cento) e seis gatos (1,38 por cento) apresentaram capilariose hepática. Um gato e dois cäes apresentaram sinais clínicos relacionados ao parasitismo, nos demais animais, a parasitose foi considerada um achado incidental de necropsia. A prevalência maior em gatos foi atribuída ao comportamento social e hábitos alimentares da espécie. Dados relativos a sexo, idade, raça, procedência, sinais clínicos, lesöes macro e microscópicas dos animais afetados säo apresentados e discutidos.

Capillaria hepatica, a parasite of zoonotic importance--a brief overview.

This review briefly elucidates the biology and mode of transmission of the parasite capillaria hepatica, an cuimial parasite. Occasional transmitted to man.