Positive signals were mainly found in cytoplasm and nuclei of tumor cells, and a small quantity of positive expression of aromatase mRNA was found in stromal cells and vascular endothelium cells of the tumor.

• 阳性信号主要位于癌细胞的胞浆和胞核内 ,肿瘤的间质细胞和血管内皮细胞也有少量表达。