Type of Preparation: Histology Magnification: High Clinical History: 42 year old perimenopausal woman presents with irregular bleeding and an enlarged uterus Interpretation: Other Malignant Neoplasms: Sarcoma Explanatory Notes: This histologic section of uterine sarcoma displays a highly pleomorphic malignant neoplasm composed of a mixture of spindle and undifferentiated malignant cells with scattered multinucleated giant cells.