Carcinosarcoma of the liver with mesenchymal differentiation Shinichi Sumiyoshi, Masataka Kikuyama, Yuji Matsubayashi, Fujito Kageyama, Yoshihiro Ide
R73; We report an extremely rare case where a mesenchymal differentiation, especially embryonal sarcoma, was demonstrated in cholangiocarcinoma. At autopsy, a yellowish-white tumor (15 cm × 12 cm) was found in the right hepatic lobe, and there were several daughter nodules in both hepatic lobes. His...
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Published in | 世界胃肠病学杂志(英文版) Vol. 13; no. 5; pp. 809 - 812 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Department of Gastroenterology, Hamamatsu Rosai Hospital, Hamamatsu, Japan%Department of Pathology, Hamamatsu Rosai Hospital, Hamamatsu, Japan%Second Division,Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
2007
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Abstract | R73; We report an extremely rare case where a mesenchymal differentiation, especially embryonal sarcoma, was demonstrated in cholangiocarcinoma. At autopsy, a yellowish-white tumor (15 cm × 12 cm) was found in the right hepatic lobe, and there were several daughter nodules in both hepatic lobes. Histologically, most of the main tumor and all of the daughter nodules examined showed sarcomatous changes (spindle cells, pleomorphic cells and hyalization). Histologic examination of a part of the main tumor disclosed a focus of adenocarcinoma within the tumor. The frequent transitions between the adenocarcinomatous areas and the sarcomatous areas suggested that sarcomatous transformation occurred in the cholangiocarcinoma and then spread rapidly.Immunohistochemically, the adenocarcinomatous elements were positive for cytokeratin, carcinoembryonic antigen (CEA) and epithelial membrane antigen, and negative in the sarcomatous cells. Vimentin was positive only in the sarcomatous elements. The findings of the present case support the view that carcinosarcomas represent carcinomas that develop sarcomatous elements via metaplasia of the epithelial element. |
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AbstractList | R73; We report an extremely rare case where a mesenchymal differentiation, especially embryonal sarcoma, was demonstrated in cholangiocarcinoma. At autopsy, a yellowish-white tumor (15 cm × 12 cm) was found in the right hepatic lobe, and there were several daughter nodules in both hepatic lobes. Histologically, most of the main tumor and all of the daughter nodules examined showed sarcomatous changes (spindle cells, pleomorphic cells and hyalization). Histologic examination of a part of the main tumor disclosed a focus of adenocarcinoma within the tumor. The frequent transitions between the adenocarcinomatous areas and the sarcomatous areas suggested that sarcomatous transformation occurred in the cholangiocarcinoma and then spread rapidly.Immunohistochemically, the adenocarcinomatous elements were positive for cytokeratin, carcinoembryonic antigen (CEA) and epithelial membrane antigen, and negative in the sarcomatous cells. Vimentin was positive only in the sarcomatous elements. The findings of the present case support the view that carcinosarcomas represent carcinomas that develop sarcomatous elements via metaplasia of the epithelial element. |
Author | Yoshihiro Ide Hirotoshi Nakamura Fujito Kageyama Shinichi Sumiyoshi Masataka Kikuyama Yoshimasa Kobayashi Yuji Matsubayashi |
AuthorAffiliation | Department of Gastroenterology, Hamamatsu Rosai Hospital, Hamamatsu, Japan%Department of Pathology, Hamamatsu Rosai Hospital, Hamamatsu, Japan%Second Division,Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan |
AuthorAffiliation_xml | – name: Department of Gastroenterology, Hamamatsu Rosai Hospital, Hamamatsu, Japan%Department of Pathology, Hamamatsu Rosai Hospital, Hamamatsu, Japan%Second Division,Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan |
Author_xml | – sequence: 1 fullname: Shinichi Sumiyoshi – sequence: 2 fullname: Masataka Kikuyama – sequence: 3 fullname: Yuji Matsubayashi – sequence: 4 fullname: Fujito Kageyama – sequence: 5 fullname: Yoshihiro Ide – sequence: 6 fullname: Yoshimasa Kobayashi – sequence: 7 fullname: Hirotoshi Nakamura |
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Title | Carcinosarcoma of the liver with mesenchymal differentiation Shinichi Sumiyoshi, Masataka Kikuyama, Yuji Matsubayashi, Fujito Kageyama, Yoshihiro Ide |
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