反射性交感神经营养不良的影像学诊断

目的探讨反射性交感神经营养不良(RSD)影像学诊断的意义。方法收集并分析5例反射性交感神经营养不良的临床和影像学特点。结果全部患者均在外伤后起病,均有错位疼痛、局部水肿和感觉过敏等临床表现。X线平片和CT检查均可发现病变部位的斑片状骨质疏松,CT检查优于平片。4例患者行骨扫描检查发现病变部位均有放射性异常浓集影。1例早期患者行MR I检查,能发现在平片中不易发现的骨侵蚀。结论平片和CT扫描显示的斑片状骨质疏松是本病最具特征性的影像学表现,骨扫描和MR I有助于本病的早期诊断。

Imaging Diagnosis of Reflex Sympathetic Dystrophy

Objective To investigate the value of imaging in the diagnosis of reflex sympathetic dystrophy(RSD).Methods The clinical manifestations and imaging findings of RSD in five patients were analyzed.Results The onset of clinical symptoms of patients was followed by an injury in all cases.Severe pain,swelling,limited range of motion and vasomotor instability were main complaints.Patchy bone demineralization could be found both on plain radiographs and CT.CT scan was superior to plain radiographs in detecting bone demineralization.Increased scintigraphic uptake in the involved extremities were demonstrated in all four patients who examined by bone scintigraphy.Bony erosions which were not easily visible on plain radiographs could be clearly seen on MRI in one patient at early stage.Conclusion Patchy bone demineralization on plain radiographs and CT is the most outstanding imaging finding in RSD.Bone scintigraphy and MRI can help early in diagnosis of the disease.