Malignant leiomyoblastoma (epithelioid leiomyosarcoma) of the stomach: A case report.
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概要
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A case of malignant leiomyoblastoma of the stomach in a 85-years-old female is presented. The tumor was located in the submucosal layer on greater curvature, and 6×5×4cm in size with ulceration. Tumor cells were small, round or oval, cyanophilic or naked, isolated and scattered.<BR>Histology of the tumor showed leiomyoblastoma with frequent mitotic frigures, arising from the muscular layer, partly invading blood vessels and destroying lamina muscularis mucosae. Tumor cells were positive for Vimentin, negative for Grimelius, PAS staining, EMA, Keratin, S-100, Desmin by immunohistochemical study.<BR>Electron microscopic finding indicated that the tumor originated in the smooth muscle with pinocytotic vesicles, basal lamina, hemidesmosome in dark cell.
- 特定非営利活動法人 日本臨床細胞学会の論文
特定非営利活動法人 日本臨床細胞学会 | 論文
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