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01121 Journal of Nara Medical Association >
Vol.69 No.1,2,3 >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10564/3515

Title: 右腸腰筋筋肉内脂肪腫が並存した後腹膜原発脱分化型脂肪肉腫の一例
Other Titles: A Case of Retroperitoneal Dedifferentiated Liposarcoma Coexisting with Intramuscular Lipoma of the Right Iliopsoas Muscle.
Authors: 谷, 里奈
岸, 真五
國安, 弘基
Keywords: 筋肉内脂肪腫
脱分化型脂肪肉腫
MDM2
p16
CDK4
Issue Date: 30-Jun-2018
Publisher: 奈良医学会
奈良県立医科大学
Citation: Journal of Nara Medical Association Vol.69 No.1,2,3 p.53-55 (2018.6)
Abstract: A 63-year-old woman was autopsied who showed a 20cm-sized tumor in the retroperitoneal cavity with progressive anemia. Histologically, undifferentiated tumor cells with eosinophilic cytoplasm were proliferating in a solid pattern. Some well-differentiated lipoma-like cells and lipoblasts were scattered. A necrotic area with hemorrhage was observed in the tumor; however, mitotic figures were found to be rare. In the adjacent skeletal muscle tissue, intramuscular lipoma was observed. In immunohistochemistry, the undifferentiated tumor cells were positive for CDK4 and p16. From these findings, the tumor was diagnosed as dedifferentiated liposarcoma.
URI: http://hdl.handle.net/10564/3515
ISSN: 13450069
Appears in Collections:Vol.69 No.1,2,3

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