Pitiosis entérica con complicación bacteriana en un canino mestizo

Facundo Nahuel Lazarte Monteros; Luz del Rosario Lobato Chálabe; Ana Paula Ibáñez Picón; Melisa Flores; Gonzalo Valdez Jaén; Franco Hugo Lezcano

doi:10.30972/vet.3719219

Authors

Facundo Nahuel Lazarte Monteros Actividad privada. San Miguel de Tucumán, Tucumán, Argentina https://orcid.org/0009-0001-5436-1843
Luz del Rosario Lobato Chálabe Actividad privada. San Miguel de Tucumán, Tucumán, Argentina https://orcid.org/0009-0004-8118-0628
Ana Paula Ibáñez Picón Actividad privada. San Miguel de Tucumán, Tucumán, Argentina https://orcid.org/0009-0009-1599-024X
Melisa Flores Actividad privada. San Miguel de Tucumán, Tucumán, Argentina https://orcid.org/0009-0009-3343-7122
Gonzalo Valdez Jaén Actividad privada. San Miguel de Tucumán, Tucumán, Argentina https://orcid.org/0000-0002-9485-7974
Franco Hugo Lezcano Actividad privada. San Miguel de Tucumán, Tucumán, Argentina https://orcid.org/0009-0009-5731-8638

DOI:

https://doi.org/10.30972/vet.3719219

Keywords:

Intestinal lesions, hemorrhagic diarrhea, lymphadenomegaly, ascites, Pythium sp

Abstract

A 3-year-old male mixed-breed dog from Termas de Río Hondo, Argentina, presented with a one-month history of gastrointestinal signs, including hemorrhagic diarrhea, vomiting, abdominal pain, and initial fever, which were refractory to treatment. Upon admission to the veterinary service, the patient showed 7% dehydration. Ultrasonographic examination revealed duodenal wall thickening and jejunal lymphadenomegaly. Exploratory laparotomy confirmed severe intestinal lesions, and an enterectomy was performed with sample collection for histopathological examination, along with blood transfusion. Forty-eight hours after surgery, the patient developed ascites with a positive culture for Proteus mirabilis. Histopathology confirmed lesions compatible with enteric pythiosis caused by Pythium sp. The patient died within the next 24 hours. This case highlights the aggressiveness of enteric pythiosis and the importance of early diagnosis in endemic areas.

Downloads

Download data is not yet available.

References

1. Balbi AB, Cavallaro SL, Coppolecchia M, Fernández DS, Greco MG, Lamarca ML, Oliva JA, Ribas IS, Serrano M, Sosa IG, Tobio MI. Estudio geocientífico aplicado al ordenamiento territorial: Las Termas de Río Hondo, Provincia de Santiago del Estero, República Argentina. Buenos Aires: Servicio Geológico Minero Argentino (SEGEMAR). 2018; p. 245 Disponible en: https://repositorio.segemar.gov.ar/handle/308849217/3273.

2. Barua S, Tarannum A, Newton J, Mendoza L, Chenoweth K, Barger P, Wang C. Improving noninvasive diagnosis of cutaneous and gastrointestinal forms of Pythium insidiosum infections in dogs: complementary roles of serum-based ELISA and polymerase chain reaction. Am J Vet Res. 2025; 87(1): 1-9. https://doi.org/10.2460/ajvr.25.07.0236 DOI: https://doi.org/10.2460/ajvr.25.07.0236

3. Carnaúba RTS. Pythium insidiosum e pitiose: uma revisão de literatura [master's thesis]. Botucatu (Brazil): Universidade Estadual Paulista "Júlio de Mesquita Filho", Faculdade de Medicina Veterinária e Zootecnia; 2023.

4. Dycus DL, Fisher C, Butler R. Surgical and medical treatment of pyloric and duodenal pythiosis in a dog. J Am Anim Hosp Assoc. 2015; 51(6): 385-91. https://doi.org/10.5326/JAAHA-MS-6217. DOI: https://doi.org/10.5326/JAAHA-MS-6217

5. Graham JP, Newell SM, Roberts GD, Lester NV. Ultrasonographic features of canine gastrointestinal pythiosis. Vet Radiol Ultrasound. 2000; 41(3): 273-7. https://doi.org/10.1111/j.1740-8261.2000.tb01490.x DOI: https://doi.org/10.1111/j.1740-8261.2000.tb01490.x

6. Manço MH, Ferreira SK, Perossi IFS, Klein M, Pelógia MES, Carra GU, Souza CDD, Costa MT, Bosco SMG, Moraes PC, Vasconcelos RO. Metastatic calcification and granulomatous gastroenteritis associated to Pythium insidiosum in a dog. Braz J Vet Pathol. 2021; 14(1): 50-5. https://bjvp.org.br:444/bjvp/article/view/332 DOI: https://doi.org/10.24070/bjvp.1983-0246.v14i1p50-55

7. Mendoza L. Pythium insidiosum. 2016. Disponible en: https://www.researchgate.net/publication/292754851_Pythium_insidiosum.

8. Silva EMS, Martins KPF, Pereira AHB, Gris AH, Maruyama FH, Nakazato L, Colodel EM, Oliveira LGS, Boabaid FM. Esophageal and gastric pythiosis in a dog. Cienc Rural. 2024; 54(6): e20230272. https://doi.org/10.1590/0103-8478cr20230272 DOI: https://doi.org/10.1590/0103-8478cr20230272

9. Silva FHA, Araujo BVS, Sousa RLP, Gameleira JS, Fontes MDP, Soares YGS, Galiza GJN, Braga JFV. Colitis and proctitis caused by Pythium insidiosum in a dog. Acta Sci Vet. 2025; 53(Suppl 1): 1014. https://doi.org/10.22456/1679-9216.141158. DOI: https://doi.org/10.22456/1679-9216.141158

10. Sukanan P, Suparp B, Yongsiri S, Chansiripornchai P, Kesdangsakonwut S. Successful management of colonic pythiosis in two dogs in Thailand using antifungal therapy. Vet Med Sci. 2022; 8(6): 2283-91. https://doi.org/10.1002/vms3.955. DOI: https://doi.org/10.1002/vms3.955

11. Yolanda H, Krajaejun T. Global distribution and clinical features of pythiosis in humans and animals. J Fungi. 2022; 8(2): 182. https://doi.org/10.3390/jof8020182. DOI: https://doi.org/10.3390/jof8020182