Sperm granuloma and sperm agglutination in a dog with asthenozoospermia |
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| Authors: | Kawakami Eiichi Koga Haruka Hori Tatsuya Tsutsui Toshihiko |
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| Institution: | Department of Reproduction, Nippon Veterinary and Animal Science University, Tokyo, Japan. |
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| Abstract: | A mongrel dog, aged 2 years, was found to have only a small number of sperm, immobilization of all sperm, and many sperm agglutinations in its ejaculates, and scrotal palpation revealed a small nodule in the left cauda epididymis. Addition of the dog's seminal plasma or serum to the semen of 2 normal dogs caused immobilization and agglutination of their sperm. Histological examination showed that the nodule was a sperm granuloma. Many lymphocytes were seen in the stroma around the sperm granuloma. Anti-sperm antibodies are presumed to be present in the semen and serum of the asthenozoospermic dog. |
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