子宮原発の純粋横紋筋肉腫の１例

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  • A case of uterine pure rhabdomyosarcoma.

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We experienced a case of primary pure rhabdomyosarcoma of the uterus without other mesenchymal and epithelial elements.<BR>The patient was a 63-year-old woman who complained of lower abdominal pain and irregular genital bleeding. She underwent hystero-oophorectomy under the diagnosis of suspected uterine sarcoma.<BR>The stamp specimen of the surgical material revealed spindle and racket-like shaped tumor cells with oval shaped nuclei and a few prominent nucleoli, and occasionally a striated structure observed in the cytoplasm of tumor cells. In histochemical study, the cytoplasm of tumor cells was positively stained with desmin, myoglobin and CPK-mm, and in electron microscopy, tumor cells were accompanied by actin and myosin myofilaments and myofibrils in the cytoplasm.<BR>Other mesenchymal and epithelial elements were not observed in the surgical material. This tumor was diagnosed as pure rhabdomyosarcoma of the uterus.

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