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目的：探讨ＩｇＧ型多发性骨髓瘤（ＭＭ）的Ｘ线及ＣＴ表现。材料与方法：经骨髓涂片或活检、免疫学检查，确诊为ＩｇＧ型ＭＭ患者１６例，对其Ｘ线及ＣＴ影像进行分析及总结。结果：ＩｇＧ型ＭＭ好发于红骨髓部位，主要征象为骨破坏（类圆形，膨胀形及不规则３型）、骨折、骨疏松。膨胀性骨破坏好发于肋骨，ＣＴ显示骨破坏处为软组织替代，可有完整或不完整骨壳，对邻近结构仅为外压而无浸润表现，治疗后可修复。结论：骨髓瘤细胞在骨髓内生长呈灶性或弥漫性，其与Ｘ线及ＣＴ表现、检查方法之选择及预后关系密切。诊断不明确时应采用ＭＲＩ、ＣＴ检查。ＩｇＧ型ＭＭ易感染的特点，在影像学检查时应注意观察
Objective: To investigate the X-ray and CT findings of IgG multiple myeloma (MM). MATERIALS AND METHODS: Sixteen patients with IgG-type MM were diagnosed by bone marrow smear or biopsy and immunological examination. Their X-ray and CT images were analyzed and summarized. Results: The IgG type MM occurred in the red bone marrow. The main signs were bone destruction (round, bulge and irregular type 3), fracture and osteoporosis. Expansion of bone destruction occurs in the ribs, CT showed that the bone destruction of soft tissue replacement, there may be complete or incomplete bone shell, adjacent structures only for external pressure without infiltration performance, after treatment can be repaired. CONCLUSION: Myeloma cells grow focal or diffuse in the bone marrow, which is closely related to the X-ray and CT findings, the choice of the method of examination and prognosis. Diagnosis is not clear should be used MRI, CT examination. IgG-type MM susceptible to the characteristics of the imaging examination should be observed