Data/hora: 11/06/2024 06:25:17

Provedor de dados: 	19	
País: 	Japan	
Título: 	Humeral chondrosarcoma in a Hokkaido brown bear (Ursus arctos yesoensis).	
Autores: 	MURAKAMI, Tomoaki; KOBAYASHI, Yoshiyasu; CHIBA, Shiori; KURAUCHI, Yuki; SAKAMOTO, Hideyuki; SASAKI, Motoki; MATSUI, Takane; 古林, 与志安; 佐々木, 基樹.	
Data: 	2012	
Ano: 	2012	
Palavras-chave: 	Brown bear; Chondrosarcoma; Humerus; Metastasis.	
Resumo: 	Humeral chondrosarcoma was found in an 18-year-old male Hokkaido brown bear (Ursus arctos yesoensis). Necropsy revealed a large firm mass under the left superficial pectoral muscle at the axillary region. The mass involved the left shoulder joint and peripheral muscles, and connected to the head of the humerus with osteolysis. Histopathologically, the mass was composed of irregularly shaped myxomatous to cartilaginous tumor lobules. The tumor cell showed moderate nuclear atypia with a relatively high mitotic index, especially in the edges of the myxomatous lobules. The tumor cells were positively immunostained with vimentin and S-100 protein. Based on these findings, the tumors were diagnosed as chondrosarcoma. Metastases were found in the left axillary lymph node, lungs, liver and kidney.	
Idioma: 	Inglês	
Identificador: 	http://ir.obihiro.ac.jp/dspace/handle/10322/4122	
Editor: 	日本獣医学会	
Fonte: 	日本獣医学会