Results:Soft tissue mass,sacral foramen obstruction,calcification and bone marrow involvement were fomed different ranges and location and characteristic MRI signal intensity.

• 结果:各种骶骨源性肿瘤及肿瘤样病变的征象包括:软组织肿块,骶孔扩大变形,病灶内钙化及骨嵴形成,髓腔浸润,病变不同的中心位置及范围。