title: Sperm granuloma and sperm agglutination in a dog with asthenozoospermia.
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.
authors.affiliation: Department of Reproduction, Nippon Veterinary and Animal Science University, Tokyo, Japan.
authors.forename: Eiichi
authors.initials: E
authors.lastname: Kawakami
authors.forename: Haruka
authors.initials: H
authors.lastname: Koga
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Hori
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Tsutsui
mesh_terms: D000818:Animals; D001323:Autoantibodies / Q000276:immunology*; D004283:Dog Diseases / Q000276:immunology* / Q000473:pathology; D004285:Dogs; D006099:Granuloma / Q000276:immunology / Q000473:pathology* / Q000662:veterinary*; D008297:Male; D012661:Semen / Q000276:immunology; D013073:Sperm Agglutination / Q000276:immunology*; D013076:Sperm Count; D013081:Sperm Motility; D013094:Spermatozoa / Q000276:immunology* / Q000473:pathology; D013737:Testis / Q000473:pathology
chemical_list: D001323:Autoantibodies