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髓外浆细胞瘤(extramedullary plasmacytoma,EMP)是一种少见肿瘤,在浆细胞恶性肿瘤中不足4%〔1〕。浆细胞肿瘤是一种B细胞来源的恶性肿瘤,新版WHO分类将其分为浆细胞骨髓瘤和浆细胞瘤2个亚型,而浆细胞瘤又包括骨的孤立性浆细胞瘤(solitaryplasmcytoma of bone,SPB)和EMP2个变异
Extramedullary plasmacytoma (EMP) is a rare tumor with less than 4% of plasma cell malignancies [1]. Plasmacytoma is a malignant tumor of B-cell origin. The new WHO classification divides it into two subtypes of plasma cell myeloma and plasmacytoma, whereas plasmacytoma includes solitaryplasmcytoma of bone , SPB) and EMP2 variants