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KMID : 0425120240620010131
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Parasites, Hosts and Diseases
2024 Volume.62 No. 1 p.131 ~ p.138
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Pathological fracture induced by Halicephalobus gingivalis (Nematoda: Rhabditida) in a horse limb
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Ticiana Meireles Sousa
Hugo Shisei Toma
Antonio de Padua Lima
Antonio Carlos Cunha Lacreta Junior
Maira Meira Nunes
Ana Paula Cassiano da Silva
Daniel Wouters
Adriana Silva Albuquerqu
Mary Suzan Varaschin
Djeison Lutier Raymundo
Claudia Dias Monteiro Toma
Fernando Arevalo Batista
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Abstract
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Halicephalobus gingivalis is a free-living nematode that occasionally causes infections inhorses. We report a rare case of limb fracture of horse caused by infection with H. gingivalis. An 8-year-old mare was referred to the Veterinary Hospital of the Federal Universityof Lavras with claudication grade 5 of the right hind limb, that had been started 3months ago. The patient had aseptic arthritis in the tarsal joint and edema that extendedto the quartile. The radiographic examination showed punctate osteolysis with exacerbation of bone trabeculation along the calcaneus, talus, proximal epiphysis of the thirdmetatarsal and distal epiphysis of the tibia. Treatment for arthritis was initiated, and theanimal showed a slight improvement in limb function. However, 21 days after hospitalization, due to a comminuted fracture of the tibia, it was euthanized. At necropsy, yellowish masses were found from the metatarsal to the tibia, and around the tarsal bonesand joint. Similar masses were also found in the left kidney. Numerous nematodes compatible with H. gingivalis were identified. This is the first description of a pathologicalfracture caused by H. gingivalis infection in an equine limb.
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KEYWORD
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Halicephalobus gingivalis, equine, granulomatous osteomyelitis, claudication, arthritis
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