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| MURAKAMI, Tomoaki; KOBAYASHI, Yoshiyasu; CHIBA, Shiori; KURAUCHI, Yuki; SAKAMOTO, Hideyuki; SASAKI, Motoki; MATSUI, Takane; 古林, 与志安; 佐々木, 基樹. |
| 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... |
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Palavras-chave: Brown bear; Chondrosarcoma; Humerus; Metastasis. |
| Ano: 2012 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4122 |
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| 松山, 雄喜; 神尾, 恭平; 村上, 智亮; 下田, 崇; 古林, 与志安; 古岡, 秀文; 松本, 高太郎; 猪熊, 壽; MATSUYAMA, Yuuki; KAMIO, Kyouhei; MURAKAMI, Tomoaki; SHIMODA, Takashi; KOBAYASHI, Yoshiyasu; FURUOKA, Hidefumi; MATSUMOTO, Kohtaro; INOKUMA, Hisashi. |
| 5 歳6 カ月齢ホルスタイン種乳牛が，後躯麻痺による起立不能を呈した．浅頸リンパ節の腫大と直腸検査による腫瘤 の触知から牛白血病を疑ったが，血液検査とリンパ節の針吸引生検では確定診断できなかった．剖検では，60 × 40 × 20cm 大の多結節性腫瘤が背側の腹腔壁に接して存在していた．腫瘍組織は腸腰筋に浸潤し，一部は第5 および第6 腰 椎椎間孔より脊柱管内に連続的に波及し，脊髄および脊髄神経根を圧迫していた．腫瘍はCD3 陽性のT細胞性リンパ 腫で，牛白血病ウイルス抗体陰性であったため，散発型牛白血病と診断された． A Holstein cow (5 years and 3 months old) presented with hind limb paresis and was unable to stand. Bovine leukosis was suspected given the enlargement of cervical lymph nodes and existence of an abdominal mass detected by rectal palpation; however，it could not be confirmed by blood examination and fine needle aspiration of cervical lymph nodes. Pathological examination revealed a mu1tinodular mass (60 x 40 x 20 cm) on the dorsal abdomen that was invasive into the iliopsoas muscle. A portion of the... |
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Palavras-chave: 牛白血病; 脊髄浸潤; 後躯麻痺; Bovine leukosis; Spinal cord invasion; Hind limb paresis. |
| Ano: 2009 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2809 |
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| 松山, 雄喜; 村上, 智亮; 大林, 哲; 古林, 与志安; 松本, 高太郎; 松井, 高峯; 猪熊, 壽; MATSUYAMA, Yuuki; MURAKAMI, Tomoaki; OHBAYASHI, Tetsu; KOBAYASHI, Yoshiyasu; MATSUMOTO, Kotaro; MATSUI, Takane; INOKUMA, Hisashi. |
| 8カ月齢ホルスタイン種乳牛が起立不能を呈した.右下顎リンパ節相当部に腫瘤を認めたため，午白血病を疑い血液検査および針吸引細胞診を実施したが，確定診断に至らなかった.病理解剖においては，環椎および胸椎にも腫瘤が存在し脊髄を圧迫していた.病理組織学的に，腫瘍細胞はBLA-36抗原陽性であり，B細胞性リンパ腫と診断した. BLV抗体は陰性であった.これらのことから，本症例は非定型若齢牛の散発性牛白血病と考えられた. An 8-month-old Holstein heifer presented with difficulty in standing. Bovine leukosis was suspected because of the enlargement of the right mandibular lymph node; however，this could not be confirmed by fine needle aspiration of the lymph node and blood examination. A postmortem examination revealed that neoplastic masses compressed the spinal cord and nerves at the atlas and thoratic vertebra. A histopathological examination revealed the mass to be B-cell lymphoma based on BLA-36 positivity，but antibodies against bovine leukemia virus were not detected.... |
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Palavras-chave: 非定型; 散発性牛白血病; 起立不能; Atypical form; Sporadic bovine leukosis; Astasia. |
| Ano: 2010 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2943 |
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