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乳腺叶状肿瘤是一组基本类似纤维腺瘤,界限清楚,具有双向分化特点的肿瘤。其组织学特征为,裂隙状分布的双层上皮细胞被过度生长的富于细胞的间叶成分围绕,形成典型的叶状结构。在最新的(2003)分类中将叶状肿瘤归入纤维上皮性肿瘤,并将叶状肿瘤明确分为良性、交界性和恶性[1]。
Breast leaf tumor is a group of basic similar fibroadenoma, well-defined, with the characteristics of two-way differentiation of the tumor. Histologically, the bifurcated epithelial cells are surrounded by overabundanced cell-rich mesenchyme, forming a typical leaf-like structure. In the newest (2003) classification, phyllodes tumors are classified as fibrous epithelial tumors, and phyllodes tumors are categorized as benign, borderline, and malignant [1].