Menezes Rodrigo Caldas, Dos Santos Sonia Maria Cursino, Ceccarelli Paulo Sérgio, Tavares Luiz Eduardo Roland, Tortelly Rogério, Luque José Luis
Clinical Research Laboratory for Domestic Animal Dermatozoonosis, Evandro Chagas Clinical Research Institute, Oswaldo Cruz Foundation–Fiocruz.
Rev Bras Parasitol Vet. 2011 Jul-Sep;20(3):207-9. doi: 10.1590/s1984-29612011000300005.
Five specimens of Arapaima gigas caught in the Araguaia River (State of Mato Grosso, Brazil) were investigated for helminths in 2004. Numerous adult specimens of the rhapidascarid nematode Goezia spinulosa were found in stomach ulcers in all the specimens of A. gigas and were surrounded by thickening of the mucosa. The gastric glands of all the fish were necrotic and there was a severe and diffuse inflammatory reaction composed of eosinophils (which were predominant), lymphocytes and rare macrophages in the mucosa, submucosa and muscle layer. This is the first report of tissue lesion occurrences in this host, in the presence of G. spinulosa, and it confirms the high pathogenicity of this parasite species.
2004年，对在巴西马托格罗索州阿拉瓜亚河捕获的5条巨骨舌鱼标本进行了寄生虫调查。在所有巨骨舌鱼标本的胃溃疡中发现了大量成年的旋刺线虫属线虫Goezia spinulosa，其周围有黏膜增厚。所有鱼的胃腺均坏死，在黏膜、黏膜下层和肌层存在由嗜酸性粒细胞（占主导）、淋巴细胞和罕见巨噬细胞组成的严重弥漫性炎症反应。这是在存在G. spinulosa的情况下该宿主组织病变发生的首次报告，证实了该寄生虫物种的高致病性。
