Open Access 
              
Copyright: The authors. This article is an open access 
article licensed under the terms of the Creative Commons Attribution License 
(http://creativecommons.org/licenses/by/2.0) which permits unrestricted use, 
distribution and reproduction in any medium, provided the work is properly 
cited.
              
              
              
              
              Research
              
              
              
              4.   
                  
                  
                              
                              Eosinophilic myositis resulted from Sarcocystis 
                              infection in prime marbled beef of Japanese black 
                              cattle - Tohru Kimura
                              Vet World. 2011; 4(11): 500-502
               
              
              
              doi: 10.5455/vetworld.2011.500-502
              
              
               
              
              
              
   
 
              
               
               
               
              
              
              Abstract
              
                              
                              
                              
                              Partial changes of color (greenish to brownish) 
                              were found in prime marbled beef of Japanese black 
                              cattle. The disseminated lesions of the skeletal 
                              muscles were histopathologically examined in 
                              relation to Sarcocystis infection. The lesions in 
                              the muscles showed granulomas with inflammatory 
                              cell infiltration. The sarcocysts had a distinct 
                              wall, which was radically striated by palisading 
                              villar protrusions. The sarcocyst wall was 
                              surrounded by degenerative eosinophils and 
                              necrotic muscle fibers. In conclusion, 
                              eosinophilic myositis in prime marbled beef of 
                              Japanese black cattle resulted from Sarcocystis 
                              spp. infection. The muscular lesions were 
                              characterized by the presence of granulomas and 
                              capsulated sarcocysts surrounded by numerous 
                              eosinophils. 
              
                              
              Keywords: eosinophilic 
                              myositis, granulomas, Japanese black cattle, 
                              sarcocyst, Sarcocystis spp.