镜下示平滑肌肉瘤的特点。与良性的平滑肌瘤相比，其细胞丰富，细胞异型性明显，深染。中央可见病理性核分裂象。
平滑肌肉瘤:自肌层突向宫腔 | 低倍镜 | 示多个病理性核分裂 | 瘤巨细胞
Here is the microscopic appearance of a leiomyosarcoma. It is much more cellular and the cells have much more pleomorphism and hyperchromatism than the benign leiomyoma. An irregular mitosis is seen in the center.