Occurrence of ectopic Dioctophyma renale in a Bolivian dog

Tancredi, Michelle Goldan de Freitas; Tancredi, Ian Philippo; Oliveira, Luiz Joel de; Oliveira, A. L.; Braga, Ísis Assis; Saturnino, Klaus Casaro; Ramos, Dirceu Guilherme de Souza

doi:10.1016/j.vprsr.2021.100604

Cited by 4 publications

(10 citation statements)

References 6 publications

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“…In der Humanmedizin existiert eine Einzelfallbeschreibung der erfolgreichen medikamentösen Therapie eines beidseitigen renalen Befalls durch Dioctophyma renale mit Ivermectin 16 . Dieser Erfolg konnte in der Veterinärmedizin bisher nicht reproduziert werden 4 , 7 . Daher ist die chirurgische Entfernung der Würmer mittels Nephrektomie bei unilateralem Befall der rechten Niere ohne erkennbares Restparenchym und mit intakter kontralateraler Niere die bevorzugte Behandlungsoption in der Veterinärmedizin 4 , 7 .…”

Section: Unilaterale Nephrektomie Als Therapie Der Wahlunclassified

“…Dieser Erfolg konnte in der Veterinärmedizin bisher nicht reproduziert werden 4 , 7 . Daher ist die chirurgische Entfernung der Würmer mittels Nephrektomie bei unilateralem Befall der rechten Niere ohne erkennbares Restparenchym und mit intakter kontralateraler Niere die bevorzugte Behandlungsoption in der Veterinärmedizin 4 , 7 .…”

Section: Unilaterale Nephrektomie Als Therapie Der Wahlunclassified

“…Das Krankheitsbild ist abhängig von der Anzahl und Lokalisation der Parasiten sowie Infektionsdauer und Co-Morbiditäten [7].…”

Section: Merkeunclassified

“…Während ein einseitiger Nierenbefall (durch die Kompensationsmechanismen der kontralateralen Seite) oder ektope Infektionen lange Zeit asymptomatisch verlaufen und häufig einen Zufallsbefund in der pathologischen Untersuchung darstellen [4,7], kann ein einseitiger Befall bei bereits bestehender Nierenerkrankung oder eine beidseitige Niereninfektion sich in Form einer fulminanten chronischen Nierenerkrankung äußern [7].…”

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Dioctophyma renale – Ein weitgehend unbekannter Nematode aus dem Ausland

Buschow,

Pantke

2023

kleintier konkret

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Section: Unilaterale Nephrektomie Als Therapie Der Wahlunclassified

“…Das Krankheitsbild ist abhängig von der Anzahl und Lokalisation der Parasiten sowie Infektionsdauer und Co-Morbiditäten [7].…”

Section: Merkeunclassified

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Dioctophyma renale – Ein weitgehend unbekannter Nematode aus dem Ausland

Buschow,

Pantke

2023

kleintier konkret

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“…Rocha et al (2018) encontraram o parasita em testículo de canino em Santa Catarina, Brasil. Recentemente houve o primeiro relato científico da ocorrência ectópica de D. renale no tecido subcutâneo de uma pata de cão doméstico em San Matias na Bolívia (Tancredi et al, 2021). Gomez-Puerta et al (2021) reportaram ocorrência abdominal do parasita em gato doméstico no Peru.…”

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Nefropatía aguda y Dioctophyma renale en un perro de la ciudad de Florianópolis, SC

Monteiro¹,

Silva²,

Hoffmann³

et al. 2021

Pubvet

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O presente relato clínico trata do diagóstico e nefrectomia de cão macho, sem raça definida, que apresentava ferimentos em decorrência de mordeduras por outro cão. O cão foi submetido à exames físicos e bioquímicos e apresentou alterações em exame de urinálise e hemograma, indicando a presença de ovos do parasita Dioctophyma renale. Em exame de imagem ultrassonográfica abdominal houve sugestão da presença de parasitas adultos de D. renale no rim direito, o qual apresentava nefropatia aguda. O cão foi submetido ao procedimento cirurgico para nefrectomia, identificando-se a presença de dois vermes adultos de D. renales. O parênquima do rim direito acometido foi totalmente destruído, reduzindo-se à cápsula. O cão estava debilitado e entrou em óbito após 48h do processo cirúrgico.

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Dioctophyme renale vivo encapsulado na cavidade abdominal de um cão

Borges Iepsen,

Caye,

Franco Bastos

et al. 2024

Acta Scientiae Vet.

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Background: Dioctophymosis is a zoonosis caused by the nematode Dioctophyma renale that affects terrestrial carnivores. Normally, the adult form of the worm develops in the kidney of these animals, but ectopic cases may occur. In addition, the disease has a challenging asymptomatic or nonspecific character, and thus, it is important to make an assertive and early definitive diagnosis through ultrasonography. The disease is primarily treated via surgical techniques. Therefore, this study reports a rare case of dioctophymiasis in a dog with an adult D. renale worm encapsulated in the abdominal cavity. Case: An adult male dog (19 kg) harboring a penile lesion compatible with a transmissible venereal tumor and without other clinical symptoms was referred to the Veterinarian Clinics Hospital of the Federal University of Pelotas, Brazil. The ultrasonography images revealed intra-abdominal changes that were suggestive of parasitosis by D. renale, presenting cylindrical structures with regular hyperechogenic edges and anechogenic internal content. The patient was referred for an exploratory laparotomy. Following an 8-hour fasting period without solid food, preanesthetic medication, including methadone (0.3 mg/kg) and acepromazine (0.03 mg/kg), was intramuscularly administered. For anesthetic induction, propofol (2–5 mg/kg) was intravenously administered until it was possible to perform orotracheal intubation. For anesthetic maintenance, isoflurane (1.5 V%) diluted in 100% oxygen (50 mL/kg/min) was used in a semiclosed anesthetic circuit. The surgical approach involved a preretroumbilical incision in the median abdominal region. Upon accessing the abdominal cavity, a mass in the mesogastric region that was soft, irregular, yellowish, and measuring 10.5 × 5.5 × 3.8 cm was observed, and it was apparently adhered to the falciform ligament. A cold dissection of the structure was performed, followed by the ligation of small vessels with a 3-0 nylon thread, complete excision, and an abdominal suture in three layers. When the structure was dissected, a live and completely viable D. renale specimen was found, surrounded by seropurulent fluid, inside a cystic cavity covered with omentum. The excised capsular structure was sent for histopathological analysis, resulting in a conclusive diagnosis of granulation tissue. Discussion: When considering the dioctophymiasis cycle and the predominance of diagnoses of intrarenal parasites, the analysis of eggs in the urine is regarded as one of the primary screening methods. However, upon analyzing the patient’s urine immediately after admission to the hospital, no D. renale eggs were found in the sample. Definitive diagnosis was only possible using ultrasonography. The evidence of a viable worm inside a conjunctival capsule in the abdominal cavity indicates an erratic D. renale migration cycle. Furthermore, it was also confirmed that the parasite does not require kidney tissue for survival and can live in other parts of the body, thereby demonstrating the variety of clinical aspects in dioctophymiasis. This case indicates the possibility of unknown factors influencing the disease presentation, in agreement with similar cases reported in the literature. In the present case, the correct diagnostic approach made a definitive treatment possible. The surgical and anesthetic procedures occurred without complications and resulted in a satisfactory outcome, emphasizing the importance of understanding the complex clinical, surgical, and epidemiological aspects of dioctophymiasis.

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Occurrence of ectopic Dioctophyma renale in a Bolivian dog

Cited by 4 publications

References 6 publications

Dioctophyma renale – Ein weitgehend unbekannter Nematode aus dem Ausland

Dioctophyma renale – Ein weitgehend unbekannter Nematode aus dem Ausland

Nefropatía aguda y Dioctophyma renale en un perro de la ciudad de Florianópolis, SC

Dioctophyme renale vivo encapsulado na cavidade abdominal de um cão

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