Peh W C, Cheng K C, Ho W Y, Chan I K
Department of Diagnostic Radiology, University of Hong Kong, Queen Mary Hospital.
Australas Radiol. 1998 May;42(2):102-5. doi: 10.1111/j.1440-1673.1998.tb00583.x.
A 71-year-old woman presenting with severe low back pain was found to have a large oval area of increased sacral uptake on Tc-99m MDP scan, with corresponding T1-hypointense and T2-hyperintense areas on magnetic resonance (MR) images, highly suggestive of malignancy. Open biopsies showed only callus formation. The patient responded clinically to conservative measures, with twice-repeated follow-up Tc-99m MDP and MR scans documenting resolution of transient bone marrow oedema. We suggest that this form of marrow oedema represents a variant pattern of sacral insufficiency fractures.
一名71岁女性因严重腰痛就诊,Tc-99m亚甲基二膦酸盐(MDP)骨扫描发现骶骨有一个大的椭圆形摄取增加区域,磁共振(MR)图像上相应区域T1加权像呈低信号、T2加权像呈高信号,高度怀疑为恶性病变。开放活检仅显示骨痂形成。患者对保守治疗有临床反应,两次重复的随访Tc-99m MDP骨扫描和MR扫描显示短暂性骨髓水肿消退。我们认为这种骨髓水肿形式代表了骶骨应力性骨折的一种变异类型。