63 results match your criteria analysis dioctophyme


Occurrence of Dioctophyme renale (Goeze, 1782) in road-killed canids of Iran and its public health implication.

Vet Parasitol Reg Stud Reports 2021 Apr 1;24:100568. Epub 2021 Apr 1.

Metabolic Diseases Research Center, Research Institute for Prevention of Non-Communicable Diseases, Qazvin University of Medical Sciences,Qazvin, Iran. Electronic address:

Dioctophyme renale, is the largest of parasitic nematodes, which infects different species of fish-eating carnivores worldwide. The northern provinces of Iran (Guilan and Mazandaran) located in south of the Caspian Sea are suitable for parasitic infections due to the mild and humid climatic conditions. From separate surveys of road-killed canids in various parts of the Caspian Sea littoral area in Iran, 70 carcasses were collected along the roads of Guilan and Mazandaran from 2015 to 2017. Read More

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Giant Red Kidney Worm (Dioctophyma renale) Screening and Treatment Protocol and Aberrant Worm Migration In Dogs From Ontario and Manitoba, Canada.

J Parasitol 2021 03;107(2):358-363

Department of Shelter Health and Wellness, Ontario Society for the Prevention of Cruelty to Animals (SPCA), Stouffville, L4A 2W3 Ontario, Canada.

The life cycle of Dioctophyma renale involves an intermediate host (oligochaete), a paratenic hosts (fish and frogs), and a definitive host (mustelids and canids). Dogs are at risk of infection with D. renale when they consume paratenic hosts infected with the larval form of D. Read More

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Abdominal dioctophymosis in a domestic cat from the Peruvian rainforest confirmed morphologically and molecularly.

Parasitol Int 2021 Aug 18;83:102359. Epub 2021 Apr 18.

Laboratorio de Epidemiologia y Economía Veterinaria, Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos, Av. Circunvalación 2800, San Borja. Lima, Peru.

A case of abdominal dioctophymosis in a domestic cat was found in San Juan Bautista district, the Peruvian rainforest, in the Loreto department of Peru. The pet went to a veterinary clinic for a routine ovariohysterectomy during which a large nematode was found in the abdominal cavity. The nematode was morphologically identified as an adult female of Dioctophyme sp. Read More

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Ectopic dioctophymosis in a dog - Clinical, diagnostic and pathological challenges of a silent disease.

Parasitol Int 2020 Oct 16;78:102136. Epub 2020 May 16.

Instituto Federal do Espírito Santo, BR 482, 29520-000, Rive-Alegre, ES, Brazil.

A 9-month old, female, stray dog was rescued and conducted to a university veterinary hospital. Moderate anemia was observed and abdominal ultrasound revealed pancreatitis. Right kidney was not visualized due to intestinal gas. Read More

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October 2020

Dioctophyme renale in a domestic cat (Felis catus): Renal location and nephrectomy.

Vet Parasitol Reg Stud Reports 2019 12 2;18:100339. Epub 2019 Nov 2.

Cátedra de Parasitología Comparada, Laboratorio de Parasitosis Humanas y Zoonosis Parasitarias, Universidad Nacional de La Plata, Argentina.

Dioctophymosis is caused by Dioctophyme renale, nematode with indirect life cycle. Its intermediate host is a freshwater oligochaete and its definitive host is a wild or household carnivore. The adult nematode develops in the definite host, generally locating itself in the kidney. Read More

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December 2019

First description of parasite load and clinicopathological and anatomopathological changes in a dog naturally coinfected with Dioctophyme renale and Leishmania infantum in Brazil.

Vet Parasitol Reg Stud Reports 2019 12 13;18:100351. Epub 2019 Nov 13.

Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Av. Brasil, 4365, Rio de Janeiro CEP: 21040-360, Brazil. Electronic address:

This article reports the case of a domestic dog naturally coinfected with the nematode Dioctophyme renale and with the protozoan Leishmania infantum. The dog exhibited no clinical signs but had normocytic hypochromic anemia, hyperproteinemia, hyperglobulinemia, hypoalbuminemia, and hematuria. Necropsy revealed eight D. Read More

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December 2019

Eustrongylides sp. (Nematoda, Dioctophymatoidea) parasitizing Hoplias malabaricus (Actinopterygii: Erythrinidae) collected from the state of Rio de Janeiro, Brazil.

Rev Bras Parasitol Vet 2019 25;29(1):e014519. Epub 2019 Nov 25.

Laboratório de Inspeção e Tecnologia do Pescado, Faculdade de Medicina Veterinária, Universidade Federal Fluminense - UFF, Niterói, RJ, Brasil.

Hoplias malabaricus (Characiformes, Erythrinidae), trahira, is a neotropical freshwater fish of economic and public health significance. A total of 45 specimens of H. malabaricus commercialized in the municipality of Magé, state of Rio de Janeiro, Brazil, were acquired between April 2016 and April 2018 to investigate the presence of nematode larvae. Read More

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February 2020

Morphological and Molecular Characterization of Larval and Adult Stages of (Nematoda: Dioctophymatoidea) with Histopathological Observations.

J Parasitol 2019 12;105(6):882-889

Department of Veterinary Medical Sciences, Alma Mater Studiorum University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano Emilia (BO), Italy.

The genus includes nematodes known as the etiological agent of the "big red worm disease." The aim of this work was to identify spp. larvae from fish and adults from great cormorant () sampled at Lake Trasimeno, Italy, by morphological and molecular analysis. Read More

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December 2019

Pathology associated with larval sp. (nematoda: Dioctophymatoidea) infection in (actinopterygii: Galaxiidae) from patagonia, Argentina.

Int J Parasitol Parasites Wildl 2019 Dec 8;10:113-116. Epub 2019 Aug 8.

Laboratorio de Parasitología, INIBIOMA (Universidad Nacional del Comahue-CONICET), Quintral 1250, 8400, Bariloche, Argentina.

Helminth infections within tissues tend to be subjected to a host response that can include encapsulation and melanization to isolate the parasite. The effectiveness of this response depends on the host species. During a survey of parasites of the native fish, , we found conspicuous, strongly melanized exterior cysts located in the caudal peduncle of the fish. Read More

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December 2019

Ectopic infection by Dioctophyme renale in a dog from Georgia, USA, and a review of cases of ectopic dioctophymosis in companion animals in the Americas.

Vet Parasitol Reg Stud Reports 2018 12 25;14:111-116. Epub 2018 Sep 25.

Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, United States. Electronic address:

We report a case of ectopic dioctophymosis in an outdoor, eight-year-old spayed female, Coonhound-mix dog from Murrayville, Hall County, Georgia, USA. The dog presented to the clinic with an apparent puncture wound on her right, most caudal mammary gland, draining a serosanguinous discharge along with significant edema and thickening of the surrounding tissues. After initial physical examination the dog was placed into a cage awaiting diagnostic procedures. Read More

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December 2018

A human case of Dioctophyma renale (giant kidney worm) accompanied by renal cancer and a retrospective study of dioctophymiasis.

Parasite 2019 9;26:22. Epub 2019 Apr 9.

Department of Parasitology, Harbin Medical University, Harbin, Heilongjiang 150081, PR China.

Due to the rarity of human cases and the nonspecific clinical symptoms of dioctophymiasis, Dioctophyma renale infection is not well recognized and is easily neglected or misdiagnosed. Recently, we diagnosed a human case of dioctophymiasis accompanied by renal cancer. To enhance the understanding of human dioctophymiasis, this case is presented here, and a retrospective study of this disease was conducted based on relevant papers screened from PubMed and three Chinese databases. Read More

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Helminths Assemblage of the bare-faced ibis, Phimosus infuscatus (Lichtenstein, 1823) (Pelecaniformes: Threskiornithidae), in southern Brazil.

Rev Bras Parasitol Vet 2019 Jan-Mar;28(1):40-46. Epub 2019 Feb 21.

Laboratório de Parasitologia de Animais Silvestres - LAPASIL, Departamento de Microbiologia e Parasitologia, Instituto de Biologia, Universidade Federal de Pelotas - UFPel, Pelotas, RS, Brasil.

Birds act as hosts for a variety of parasites, many of these are unreported. The literature provides scant information on the helminth fauna of Phimosus infuscatus. The presence of helminths were investigate in 28 birds from Pelotas, Capão do Leão, and Rio Grande in Rio Grande do Sul. Read More

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Occurrence of Dioctophyme renale larvae (Goeze, 1782) (Nematoda: Enoplida) in a new host from southern Brazil.

Rev Bras Parasitol Vet 2018 Oct-Dec;27(4):609-613. Epub 2018 Nov 8.

Laboratório de Parasitologia de Animais Silvestres - LAPASIL, Instituto de Biologia - IB, Universidade Federal de Pelotas - UFPel, Pelotas, RS, Brasil.

Dioctophymatosis is caused by the giant kidney worm Dioctophyme renale which occurs in dogs, cats, and wild mammals. In Brazil, the disease has been diagnosed in dogs from several states around the country. In the present study, the occurrence of D. Read More

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[First report of Dioctophyma renale (Nematoda, Dioctophymatidae) in Colombia].

Biomedica 2018 08 1;38(0):13-18. Epub 2018 Aug 1.

Facultad de Ciencias Exactas, Naturales y Agropecuarias, Programa de Medicina Veterinaria, Laboratorio de Parasitología, Universidad de Santander, Bucaramanga, Colombia.

Dioctophymosis is a zoonotic parasitic disease caused by Dioctophyma renale (Goeze, 1782). It is distributed worldwide and it affects a large number of wild and domestic mammals.Here we report the first confirmed case of canine dioctophymosis in Colombia. Read More

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Dioctophyme renale (Nematoda: Dioctophymatidae) in Leopardus geoffroyi (Carnivora: Felidae) in the Neotropical region.

Rev Bras Parasitol Vet 2018 Apr-Jun;27(2):223-225. Epub 2018 Feb 19.

Laboratório de Parasitologia de Animais Silvestres, Departamento de Microbiologia e Parasitologia, Instituto de Biologia - IB, Universidade Federal de Pelotas - UFPel, Pelotas, RS, Brasil.

Parasitic diseases affecting wild carnivores remain largely unknown or poorly described. Dioctophymosis is a parasitosis caused by the nematode Dioctophyme renale that is found worldwide. It affects domestic and wild animals and has been reported frequently in Brazil. Read More

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February 2019

Coprodiagnosis of Echinococcus granulosus infection in dogs from Ankara, Turkey.

Vet Parasitol 2017 Aug 22;242:44-46. Epub 2017 May 22.

Ankara University, Faculty of Veterinary Medicine, Department of Parasitology, 06110 Ankara, Turkey.

The present study were undertaken to compare two isolation techniques (centrifugal flotation and sedimentation) for recovering taeniid eggs from faecal samples, to identify E. granulosus DNA from taeniid eggs by PCR, and to determine the prevalence of E. granulosus in dogs in villages. Read More

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Some nematodes, including two new species, from freshwater fishes in the Sudan and Ethiopia.

Folia Parasitol (Praha) 2017 Apr 4;64. Epub 2017 Apr 4.

Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Ceske Budejovice, Czech Republic.

Fourteen species (twelve adult and two larval) of nematodes belonging to the Ascaridoidea, Camallanoidea, Cosmocercoidea, Habronematoidea, Oxyuroidea, Seuratoidea and Trichinelloidea were collected from fishes in the Sudan (River Nile and Atbara Dam Lake), whereas only four species (one adult and three larval) of the Ascaridoidea, Camallanoidea, Dioctophymatoidea and Trichinelloideafrom fishes in Ethiopia (Lake Tana). The Sudanese material also contained two previously unknown species, Cucullanus mormyri sp. n. Read More

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Ancient parasites from endemic deer from "CUEVA PARQUE DIANA" archeological site, Patagonia, Argentina.

Parasitol Res 2017 May 24;116(5):1523-1531. Epub 2017 Mar 24.

Laboratorio de Paleoparasitología y Arqueología Contextual, Departamento de Biología, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Juan B. Justo 2550, 7600 Mar del Plata, Buenos Aires, Argentina.

The narrow Andean-Patagonian temperate rainforest strip in the west of southern South America is inhabited by two endemic species of cervids, the southern pudu (Pudu puda) and the huemul (Hippocamelus bisulcus), both cataloged as near threatened and threatened species, respectively. One of the possible causes of their declined number is the susceptibility to livestock diseases. Significant zooarchaeological records of both deer have been found throughout the Holocene from Patagonia. Read More

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Dioctophyme renale: prevalence and risk factors of parasitism in dogs of São Cristóvão district, Três Barras county, Santa Catarina State, Brazil.

Rev Bras Parasitol Vet 2017 Jan-Mar;26(1):39-46. Epub 2017 Feb 9.

Departamento de Patologia Veterinária, Universidade Estadual Paulista - UNESP, Jaboticabal, SP, Brasil.

Dioctophyme renale is a nematode that can be found parasitizing the kidney, peritoneal cavity and, rarely, other organs of canids and mustelids. This disease has high occurrence in the municipality of Três Barras, state of Santa Catarina, thus making this an interesting area to study the epidemiological aspects of infection by D. renale in dogs. Read More

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Pathology and morphometry of Hystrichis acanthocephalicus (Nematoda) from Phimosus infuscatus (Pelecaniformes) in southern Brazil.

Rev Bras Parasitol Vet 2017 Jan-Mar;26(1):34-38. Epub 2017 Jan 26.

Laboratório de Parasitologia de Animais Silvestres - LAPASIL, Departamento de Microbiologia e Parasitologia, Instituto de Biologia, Universidade Federal de Pelotas - UFPel, Campus Universitário Capão do Leão, Pelotas, RS, Brasil.

Species of Hystrichis are parasite nematodes of the digestive tract of aquatic birds in South America, Europe and Asia. In Brazil, Hystrichis acanthocephalicus has been reported in Phimosus infuscatus. There are few data on the morphometry of this species and there are no reports on pathological conditions that it causes. Read More

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Helminth parasites of Galictis cuja (Carnivora, Mustelidae), from localities in the Atlantic forest of Brazil.

Rev Bras Parasitol Vet 2016 Oct-Dec;25(4):407-413. Epub 2016 Dec 1.

Laboratório de Helmintos Parasitos de Vertebrados, Instituto Oswaldo Cruz - FIOCRUZ, Rio de Janeiro, RJ, Brasil.

The current study aimed to investigate the helminth parasites of a population of Galictis cuja (Carnivora, Mustelidae) that occur in Atlantic Forest in the Southeastern region of Brazil. We necropsied 18 specimens of G. cuja, collected between January 2009 and May 2014, ran over victims on BR-040 highway, between the municipalities of Duque de Caxias, state of Rio de Janeiro and Juiz de Fora, state of Minas Gerais, localities inserted in Atlantic rainforest Biome. Read More

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Dioctophyme renale (Nematoda: Enoplida) in domestic dogs and cats in the extreme south of Brazil.

Rev Bras Parasitol Vet 2017 Jan-Mar;26(1):119-121. Epub 2016 Dec 1.

Clínica Cirúrgica Veterinária, Departamento de Clínicas Veterinária, Faculdade de Veterinária, Universidade Federal de Pelotas - UFPel, Pelotas, RS, Brasil.

Dioctophyme renale is a zoonotic nematode that parasites the kidneys of wild and domestic carnivores, and it has been reported frequently in Brazil. The aim here was to register the number of cases of dogs and cats diagnosed with dioctophymosis by necropsy (1981 to 2014) and ultrasound examination (2010 to 2015) in Pelotas-RS. In this context, a survey was conducted on dioctophymosis cases diagnosed at the Veterinary Pathology Laboratory (LPV) and Veterinary Clinical Hospital (HCV) of the Federal University of Pelotas (UFPel), and at a specialist veterinary imaging diagnostics clinic. Read More

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First isolation of Dioctophyme renale eggs from an urban environment and identification of those from animal urine.

Rev Bras Parasitol Vet 2017 Jan-Mar;26(1):89-91. Epub 2016 Dec 1.

Faculdade de Veterinária, Universidade Federal de Pelotas - UFPel, Pelotas, RS, Brasil.

Dioctophyme renale is a zoonotic parasite with worldwide distribution, although its occurrence is little known. The objective here was to evaluate the presence of parasite eggs in the environment and in the urine of dogs and cats in an urban area. Soil samples and urine were evaluated respectively by means of the Caldwell-Caldwell technique and urinalysis. Read More

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Acute phase proteins in dogs naturally infected with the Giant Kidney Worm (Dioctophyme renale).

Vet Clin Pathol 2016 Dec 17;45(4):657-664. Epub 2016 Oct 17.

Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK.

Background: Dioctophyme renale is a nematode parasite of dogs, usually found in the right kidney, causing severe damage to the renal parenchyma.

Objectives: The objective was to evaluate the acute phase response in dogs naturally infected with this Giant Kidney Worm and the possible effects of nephrectomy on circulating concentrations of select acute phase proteins (APP) such as serum amyloid A (SAA), C-reactive protein (CRP), and haptoglobin (HP).

Methods: Nephrectomy was performed in infected dogs and the worms were collected for identification. Read More

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December 2016

Worms Expelled With the Urine From a Bosniak Cyst III of the Left Kidney.

Urology 2016 Jul 22;93:e5. Epub 2016 Mar 22.

Department of Urology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China. Electronic address:

An old fishman presented with left lumbago and finding worms in his urine. Type-B ultrasonic inspection and computed tomography scan found a Bosniak cyst III, containing several wire-like elements, in the middle of the left kidney. Expelled worms were confirmed to be Dioctophyma renale. Read More

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Giant kidney worms in a patient with renal cell carcinoma.

BMJ Case Rep 2016 Mar 7;2016. Epub 2016 Mar 7.

Division of Urology, Cook County Health and Hospitals System, Chicago, Illinois, USA Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.

Dioctophyma renale (D. renale), or giant kidney worms, are the largest nematodes that infect mammals. Approximately 20 cases of human infection have been reported. Read More

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Improvement of an enzyme immunosorbent assay for detecting antibodies against Dioctophyma renale.

Vet Parasitol 2015 Sep 13;212(3-4):435-8. Epub 2015 Aug 13.

Department of Veterinary Pathology, FCAV/UNESP, Via de Acesso Prof. Paulo Donato Castellane s/n, CEP 14887-900 Jaboticabal, SP, Brazil. Electronic address:

An available enzyme-linked immunosorbent assay (ELISA) was studied for the detection of anti-Dioctophyma renale antibodies in the sera of dogs using, detection of parasite eggs in urine sediment as a reference test. ELISA uses a soluble antigenic preparation of esophagus of D. renale and the optimal dilutions of the antigen, serum and conjugate were determined by means of checker board titration, using positive (n=13) and negative (n=27) reference serum. Read More

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September 2015

Histopathology and the inflammatory response of European perch, Perca fluviatilis muscle infected with Eustrongylides sp. (Nematoda).

Parasit Vectors 2015 Apr 15;8:227. Epub 2015 Apr 15.

Department of Life Sciences and Biotechnology, University of Ferrara, St. Borsari 46, 44121, Ferrara, Italy.

Background: The European perch, Perca fluviatilis L. is a common paratenic host of dioctophymatid nematodes belonging to the genus Eustrongylides. In this host, once infected oligochaetes, which serve as the first intermediate host, are ingested, Eustrongylides migrates through the intestine and is frequently encountered within the musculature, free within the body cavity, or encapsulated on the viscera. Read More

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Pre- and post-operative evaluations of eight dogs following right nephrectomy due to Dioctophyma renale.

Vet Q 2014 13;34(3):167-71. Epub 2014 Jun 13.

a Department of Veterinary Surgery and Anesthesiology, School of Veterinary Medicine and Animal Science , Universidade Estadual Paulista (UNESP) , Botucatu , SP , Brazil.

Background: Dioctophyma renale is a large nematode distributed worldwide that may cause progressive and severe destruction of renal parenchyma.

Objectives: The present study aimed to evaluate pre- and post-operatively dogs submitted to right nephrectomy due to D. renale and to assess the histopathological damage of the removed kidney. Read More

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Third-stage larvae of the enoplid nematode Dioctophyme renale (Goeze, 1782) in the freshwater turtle Trachemys dorbigni from southern Brazil.

J Helminthol 2015 Sep 15;89(5):630-5. Epub 2014 May 15.

Laboratório de Parasitologia de Animais Silvestres, Departamento de Microbiologia e Parasitologia, Instituto de Biologia, Universidade Federal de Pelotas (UFPel), Campus Universitário,caixa postal 354, CEP 96010-900, Pelotas,Rio Grande do Sul,Brazil.

The giant kidney worm Dioctophyme renale is normally found in wild carnivores and domestic dogs, with aquatic oligochaetes acting as intermediate hosts. In the present study a prevalence of 50% of third-stage larvae of D. renale was recorded in 60 specimens of the freshwater turtle Trachemys dorbigni from southern Brazil. Read More

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September 2015