78.在剛斷乳的倉鼠(三週齡)發現如下圖右側的典型症狀(左側是健康鼠),最可能由..-阿摩線上測驗
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4F 欠炸薯條 大一上 (2021/07/19)
Hamster polyomavirus
1. Viral infection in young hamsters results in a multicentric lymphoma involving the mesenteric lymph nodes and abdominal viscera. 2. Viral infection in adult animals results in skin neoplasms described as trichoepitheliomas (A., B.). http://dora.missouri.edu/hamsters/hamster-polyomavirus/ Gross lesions vary. If present, lesions may include splenomegaly, swollen or shrunken, pitted kidneys, lymphadenopathy and hepatomegaly. Microscopic lesions include lymphocytic meningitis (A.), chronic glomerulonephropathy (B.), widespread ... 查看完整內容 |
5F andytoyvet 大四下 (2023/03/25)
(A) Hamster polyomavirus HAMSTER POLYOMAVIRUS (HaPyV) Hamster polyomavirus was first described in Germany in asso- ciation with spontaneous skin epitheliomas from which viral particles were later identified (Graffi et al., 1967). Clinical Signs Hamsters with lymphoma will likely have signs that are dependent on the organ system infiltrated with disease, but generally signs include weight loss, dyspnea, and dehydration. Palpable masses may be found upon examination. Hamsters with trichoepithelomas present with nodules within the cutis. The tumors may grow gradually and regress spontaneously (Bar... 查看完整內容 |