Review of the literature laparoscopic surgery for metastatic hepatic leiomyosarcoma associated with smooth muscle tumor of uncertain malignant potential: Case report

Figure 4 Pathological reconfirmation of uterine leiomyoma and broad ligament with STUMP and liver lesion with leiomyosarcoma. MF was absent in an HE stain of the uterine leiomyoma (A-1). The number of MFs was 1-5 MFs / 10 HPFs in the broad ligament (A-2) and more than 10 MFs/10 HPFs in the liver mass (A-3). Ki-67-positive cells were not seen in the uterine leiomyoma (B-1). The MIB-1 index was approximately 5% of the broad ligament and approximately 35% of the liver mass (B-2) (B-3). The pathological findings of MFs and the MIB-1 index showed malignant transformation from STUMP to leiomyosarcoma. Scale bars: 50 μm.