Undifferentiated Uterine Sarcoma


D efinition A mesenchymal tumor of the uterus without smooth muscle or endometrial stromal differentiation.

Clinical Features

Epidemiology

  • Undifferentiated uterine sarcomas are rare and account for less than 0.5% of all uterine malignancies and only 10% to 15% of mesenchymal uterine malignancies.

  • Mostly occur in the fifth and sixth decades, but can be seen at any decade in adulthood.

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