Osteosarcomas in the Lungs of an ICR Mouse
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概要
- 論文の詳細を見る
Osteosarcomas were found in the lung of a 62-week-old ICR female mouse having malignant systemic lymphoma. Macroscopically, the firm white nodules were located in all lobes of the lungs. Microscopically, the multiple nodules were mainly composed of irregularly shaped bone/osteoid tissues and pleomorphic or spindle-shaped osteoblast-like cells. Most of the tumors were well-differentiated and bone/osteoid tissues were abundant in the middle of the tumors, while at the tumor periphery and in a few nodules tumor cells were dominant with thin trabeculae of osteoid. These cells had hypochromatic, irregularly oval nuclei with a few small nucleoli, and, furthermore, anisokaryosis and mitosis were observed. The tumor cells were also present in the blood vessels and bronchial tubes. Immunohistochemically, the cells were positive for proliferating cell nuclear antigen (PCNA) and vimentin, but negative for cytokeratin and S-100 protein. Ultrastructurally, the cells had prominent nucleoli and dilated rough endoplasmic reticula, and collagen fibers with high electron density particles (hydroxy apatite) were observed around the cells. These findings suggest that the present tumors were malignant osteogenic neoplasms, and we diagnosed these tumors as osteosarcomas. Based on the multifocal growth pattern and presence in the blood vessels, in spite of the primary site being unknown, the tumors were considered to be metastatic.
- 日本毒性病理学会の論文
- 2003-06-30
著者
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Tatematsu M
Division Of Oncological Pathology Aichi Cancer Center Research Institute
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TERANISHI Munehiro
Medicinal Safety Research Labs., Sankyo Co., Ltd.
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WATANABE Mayumi
Medicinal Safety Research Laboratories, Sankyo, Co., Ltd.
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IGARASHI Isao
Medicinal Safety Research Laboratories, Sankyo, Co., Ltd.
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真鍋 淳
Medicinal Safety Research Laboratories Daiichi-sankyo Co. Ltd.
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真鍋 淳
三共
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真鍋 淳
Laboratory Animal Science And Toxicology Laboratories Sankyo Co. Ltd.
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寺西 宗広
Medicinal Safety Research Laboratories Daiichi-sankyo Co. Ltd.
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Teranishi Munehiro
Medicinal Safety Res. Laboratories Daiichi-sankyo Co. Ltd.
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Sehata Shinya
Medicinal Safety Research Laboratories Sankyo Co. Ltd.
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Sehata Shinya
Medical Safety Research Laboratories Sankyo Co. Ltd.
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Shibata Shingo
Department Of Veterinary Physiology Veterinary Medical Science The University Of Tokyo
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Manabe Sunao
Medicinal Safety Research Laboratories Daiichi Sankyo Co. Ltd.
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Ogata Seiya
Medicinal Safety Research Laboratories Sankyo Co. Ltd.
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Manabe Sunao
Medical Safety Research Laboratories Sankyo Co. Ltd.
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五十嵐 功
Medicinal Safety Research Laboratories Sankyo Co. Ltd.
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高岡 雅哉
Medicinal Safety Research Laboratories Daiichi-sankyo Co. Ltd.
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Tatematsu Masae
愛知県がんセンター研究所 腫瘍病理学部
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WATANABE Minoru
Department of Pharmacology, St. Marianna University School of Medicine
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Makino Toshihiko
Medicinal Safety Research Laboratories, Daiichi Sankyo Co., Ltd.
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Takaoka Masaya
Medicinal Safety Research Laboratories Daiichi-sankyo Co. Ltd.
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MAEJIMA Takanori
Medicinal Safety Research Laboratories, Sankyo Co., Ltd.
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Watanabe Mayumi
Medicinal Safety Research Laboratories Sankyo Co. Ltd.
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Makino Toshihiko
Medicinal Safety Research Laboratories Daiichi Sankyo Co. Ltd.:department Of Veterinary Pathology Gr
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Sehata Shinya
Department Of Veterinary Physiology Veterinary Medical Science The University Of Tokyo
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寺西 宗広
Medicinal Safety Research Labs Sankyo Co. Ltd.
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Watanabe M
The Institute Of Environmental Toxicology
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Sehata Shinya
Laboratory Animal Science And Toxicology Laboratories Sankyo Co. Ltd.
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Mizoshita Tsutomu
Department Of Gastroenterology And Metabolism Nagoya City University Graduate School Of Medical Scie
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Igarashi Isao
Lab. Anim. Sci. & Toxicol. Lab. Sankyo Co. Ltd.
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Sehata Shinya
Department Of Veterinary Pathology Graduate School Of Agricultural And Life Sciences The University
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Manabe Sunao
Medicinal Safety Research Labs. Daiichi Sankyo Co. Ltd.
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Watanabe Minoru
Dep. Of Pharmacology St. Marianna Univ. School Of Medicine
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寺西 宗広
Medicinal Safety Research Laboratories Sankyo Co. Ltd.
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Ogata Seiya
Medical Safety Research Laboratories Sankyo Co. Ltd.
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Teranishi Munehiro
Medicinal Safety Research Laboratories Daiichi-sankyo Co. Ltd.
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Maejima Takanori
Medicinal Safety Research Laboratories Daiichi-sankyo Co. Ltd.
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Watanabe Mayumi
Medical Safety Research Laboratories Sankyo Co. Ltd
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Makino Toshihiko
Medicinal Safety Research Laboratories Daiichi Sankyo Co. Ltd.
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Makino Toshihiko
Medicinal Safety Research Laboratories Daiichi Sankyo Co. Ltd.:department Of Veterinary Pathology Gr
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Maejima Takanori
Medicinal Safety Research Laboratories Daiichi Sankyo Co. Ltd.
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Igarashi Isao
三共安全性研究所
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Igarashi Isao
Medicinal Safety Research Laboratories, Sankyo Co., Ltd.
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IGARASHI Isao
Medicinal Safety Research Laboratories, Daiichi Sankyo Co., Ltd., Fukuroi, Shizuoka 437–0065, Japan
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TERANISHI Munehiro
Medical Safety Research Laboratories, Daiichi Sankyo Co., Ltd.
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