Awad M A, Osheik A A, Tageldin M H, Zakia A M
Central Veterinary Research Administration, Khartoum, El Amarat, Sudan.
Rev Elev Med Vet Pays Trop. 1990;43(3):345-8.
Aortic onchocercosis due to O. armillata was diagnosed in 45 (41%) out of 109 Sudanese camels. Although the thoracic aorta was regularly affected, involvement of other vessels such as the abdominal aorta, brachiocephalic, pulmonary and costocervical arteries was not excluded. Gross examination of the affected blood vessels revealed tortuous tunnels of parasitic tracks readily visible in the intimal surface of the vessels. Nodular lesions were more common on the adventitia. Microscopically, the lesions showed irregulary elevated intimal surfaces. The underlying tunica media contained a varying number of encapsulated and partially mineralized parasitic fragments. The inflammatory response varied in intensity and location and consisted of eosinophils, lymphocytes, macrophages and occasional giant cells.
在109头苏丹骆驼中，有45头（41%）被诊断出患有因链尾盘尾丝虫引起的主动脉盘尾丝虫病。尽管胸主动脉经常受到影响，但不排除其他血管如腹主动脉、头臂动脉、肺动脉和肋颈动脉也会受累。对受影响血管的大体检查发现，在血管内膜表面很容易看到寄生轨迹的曲折隧道。结节性病变在外膜上更为常见。显微镜下，病变显示内膜表面不规则隆起。其下方的中膜含有数量不等的包囊化且部分矿化的寄生虫碎片。炎症反应在强度和位置上各不相同，由嗜酸性粒细胞、淋巴细胞、巨噬细胞和偶尔出现的巨细胞组成。
