Laboratory of Veterinary Parasitology and Parasitic Diseases of Domestic and Wild Animals, Veterinary Hospital, Faculty of Veterinary Medicine, Federal University of Mato Grosso, Cuiabá, MT, Brazil; Graduate Program in Veterinary Sciences, Faculty of Veterinary Medicine, Federal University of Mato Grosso, Cuiabá, MT, Brazil.
Graduate Program in Veterinary Sciences, Faculty of Veterinary Medicine, Federal University of Mato Grosso, Cuiabá, MT, Brazil; Laboratory of Veterinary Pathology, Veterinary Hospital, Faculty of Veterinary Medicine, Federal University of Mato Grosso, Cuiabá, MT, Brazil.
Vet Parasitol Reg Stud Reports. 2023 Nov;46:100942. doi: 10.1016/j.vprsr.2023.100942. Epub 2023 Oct 27.
Calodium hepaticum (syn. Capillaria hepatica) is a nematode responsible for parasitic zoonosis that can cause granulomatous lesions in the liver. Although murids are the main hosts, C. hepaticum has been documented in a wide range of mammals. Here, we report a case of hepatic calodiosis in a 6-month-old dog that was rescued in the municipality of Cuiabá, Mato Grosso state, midwestern Brazil. Even after being attended at a Veterinary Hospital, the case resulted in animal death. Necroscopic examination revealed significant macroscopic changes in the spleen, liver, and encephalus. Microscopic examination revealed parasitic eggs, identified as Calodium cf. hepaticum, that were rounded to oval with a bilamellar cuticle, radially striated, and with bipolar plugs. Considering the difficulty to diagnose this parasite, and the existence of diverse possible hosts in Mato Grosso due to the biodiversity of the state, further investigation is required to understand the true prevalence of C. hepaticum and the importance of this nematode in public health.
肝毛细线虫（同 Capillaria hepatica）是一种引起寄生虫性人畜共患病的线虫，可导致肝脏肉芽肿病变。虽然鼠类是主要宿主，但已在多种哺乳动物中记录到肝毛细线虫。在这里，我们报告了巴西中西部马托格罗索州库亚巴市一只 6 个月大的获救犬的肝毛细线虫病例。尽管在一家兽医医院接受了治疗，但该病例仍导致动物死亡。尸体剖检显示脾脏、肝脏和脑有明显的宏观变化。显微镜检查发现了寄生虫卵，鉴定为 Calodium cf. hepaticum，呈圆形到椭圆形，具有双层角质层、放射状条纹和双极塞。考虑到诊断这种寄生虫的难度，以及由于该州生物多样性，马托格罗索州存在多种可能的宿主，需要进一步调查以了解肝毛细线虫的真实流行情况及其在公共卫生中的重要性。
