类肿瘤样髓外造血的CT及MRI表现:1例报告并文献复习

CT and MRI features of tumor-like extramedullary hematopoiesis:One case report and literature review

髓外异位造血组织增生（extramedullary hemato-poiesis,EMH）系良性病变,是骨髓造血功能不足的生理性补偿[1],可见于地中海贫血、镰状细胞性贫血、真性红细胞增多症、骨髓纤维化、骨髓放疗术后等[2-3],主要发生于肝、脾、肾脏、淋巴结、纵隔、胸膜、腹膜后等[4],脊柱旁病灶占11%[5]。