Bukva V, Vítovec J, Schandl V
Vet Med (Praha). 1985 Sep;30(9):515-20.
Demodectic lesions were found in 37 per cent out of the total number of seventy-five cows examined by palpation in a large cow-house in South Bohemia, Czechoslovakia. These lesions were intradermal nodules, mostly 2 to 6 mm in diameter, located in the corium in the anterior parts of the body. The animals had 1 to 75 lesions (on the average 11.6). Their age was three to seven years. Their overall health condition was good and their behaviour was not affected. Microscopic examination revealed large numbers of Demodex bovis Stiles, 1892, causative agent of demodicosis, in the contents of nodules in five out of six examined animals. Histopathological changes in two nodules were characterized by inflammatory granulomatous structures containing large numbers of mites, epithelioid cells with rich, pale cytoplasm, giant cells of the foreign body type, and inflammatory infiltrates consisting mostly of lymphocytes. Fibroproduction in the contents of granulomas and along their periphery was markedly low.
在捷克斯洛伐克波希米亚南部一座大型牛舍中，通过触诊检查了75头奶牛，其中37%发现有蠕形螨病变。这些病变为皮内结节，直径大多为2至6毫米，位于身体前部的真皮层。这些动物有1至75个病变（平均11.6个）。它们的年龄为3至7岁。它们的整体健康状况良好，行为未受影响。显微镜检查显示，在6只被检查动物中的5只结节内容物中发现了大量1892年命名的牛蠕形螨，这是蠕形螨病的病原体。两个结节的组织病理学变化特征为炎症性肉芽肿结构，其中含有大量螨虫、细胞质丰富且淡染的上皮样细胞、异物型巨细胞，以及主要由淋巴细胞组成的炎症浸润。肉芽肿内容物及其周边的纤维生成明显较低。
