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恶性成骨细胞瘤少见，文献上仅报道32例[1-13]，其中大多数为良性成骨细胞瘤术后复发恶变所致。本文报道经手术病理证实的5例原发恶性成骨细胞瘤，并结合文献复习，以探讨该病的临床特点及X钱表现，以期提高对该病的认识。1一般资料1．1临床表现5例中男4例，女1例，年龄14－58?
Malignant osteoblastomas are rare and only 32 cases have been reported in the literature [1-13], most of which are due to recurrent malignant changes of benign osteoblastoma. This article reports 5 cases of primary malignant osteoblastoma confirmed by surgery and pathology, combined with literature review to explore the clinical features of the disease and the performance of X money, in order to improve the understanding of the disease. 1 General Information 1.1 Clinical manifestations 5 cases of 4 males and 1 female, aged 14-58?