Almeida Lara Ribeiro de, D'Elia Mirella Lauria, Sousa Dyeime Ribeiro de, Joaquim Jéssica de Souza, Santos Hudson Andrade, Campos Bruna Hermine, Pereira Cintia Aparecida de Jesus, Soares Danielle Ferreira de Magalhães, Lima Walter Dos Santos, Ecco Roselene
Laboratório de Helmintologia Veterinária, Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais - UFMG, Belo Horizonte, MG, Brasil.
Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, Universidade Federal de Minas Gerais - UFMG, Belo Horizonte, MG, Brasil.
Rev Bras Parasitol Vet. 2020 Jun 26;29(2):e023519. doi: 10.1590/S1984-29612020048. eCollection 2020.
An adult male puma (Puma concolor), hit by a car in an urban area, died three days later despite the therapeutic support provided. At necropsy, multiple firm nodules were identified in the gastric mucosa. The nodules were coated by an intact mucosa with a central opening from which reddish and cylindrical nematodes protruded into the lumen. Twenty-seven nematodes were retrieved for morphological and morphometric evaluations. During histopathological examination of the gastric tissue, the adult nematodes appear in longitudinal and transverse sections, surrounded by thick bands of collagen, interspersed with mixed inflammatory infiltrates. The nematodes had an eosinophilic cuticle with caudal serrated projections (bulbar type), coelomyarian musculature, pseudocoelom, and females with uterus containing numerous larvated eggs, characteristics consistent with the Cylicospirura genus. Morphologically, female nematodes had six large tricuspid teeth in the oral cavity and the vulva had an opening anterior to the esophagus-intestinal junction. Male nematodes had five pairs of small papillae near the tip of the tail. These findings were consistent with Cylicospirura felineus. This parasite should be included in the differential diagnosis of nodular gastric wall lesions in wild felids.
一只成年雄性美洲狮（美洲狮）在市区被汽车撞到，尽管给予了治疗支持，三天后还是死亡。尸检时，在胃黏膜中发现多个坚实的结节。结节被完整的黏膜覆盖，中央有一个开口，红色圆柱形线虫从中伸入管腔。取出27条线虫进行形态学和形态测量评估。在胃组织的组织病理学检查中，成年线虫出现在纵切面和横切面上，周围是厚厚的胶原带，其间有混合性炎症浸润。线虫有嗜酸性角质层，尾部有锯齿状突起（球茎型），体壁肌，假体腔，雌性子宫内有许多含幼虫的卵，这些特征与环螺旋属一致。形态上，雌性线虫口腔中有六颗大三尖瓣齿，阴门在食管-肠交界处前方开口。雄性线虫在尾尖附近有五对小乳突。这些发现与猫环螺旋线虫一致。这种寄生虫应纳入野生猫科动物胃壁结节性病变的鉴别诊断中。
