脊柱肿瘤的影像学诊断.ppt

Sag.MRI of the lower T and upper T are (A)hypointense on T1WI and (B) hyperintense onT2 WI). On DW EPI (C, b value of 440 sec/mm2; D, b value of 880 sec/mm2), the vertebral metastasis and vertebral compression fractures appear hyperintense. E, ADC map shows both vertebral metastasis and acute pathologic vertebral compression fractures with low ADCs, which indicate hindered diffusion of water protons and the pathologic nature of these findings. Note the hyperintense area located centrally in the fracture of L1, which possibly indicates unhindered diffusion in an area of debris. 63-yr F with breast Ca. M at L1 (arrows) fractures at T11-12 (arrowheads) 50-yr F breast carcinoma mastectomy 5 yrs earlier Left: Postoperative plain nteroposterior radiograph obtained after T-2 corpectomy and T1-3 stabilization performed via a median sternotomy approach (note the sternal wires (arrow) Right: Postoperative axial CT scan demonstrating good spinal decompression, structural iliac crest autograft strut, and an anterior plate. 62-yr M large cell Ca of the lung Neuroimages demonstrating reconstruction after C-4 corpectomy for a renal cell metastasis; stabilization was achieved using a titanium mesh interbody cage and chest tube construct filled with PMMA, supplemented by an anterior cervical plate. Left: Preoperative T2-weighted magnetic resonance image, sagittal view, revealing VB collapse at C-4. Right: Postoperative cervical x-ray film, lateral view. Fig.A Preoperative plain x-ray film showing marked destruction of the C-3 VB and associated kyphotic eformity. Fig.B Postoperative x-ray film showing placement of the TPS device into the C-3 corpectomy defect, restoring anterior column height. Fig.C Illustrations of the TPS device. The apparatus is expandable to fit the size of the corpectomy defect and can be filled with bone autograft if desired. Squamous cell carcinoma of the lung metastatic to C-3. A B C 骨髓瘤 Myeloma 骨髓瘤 临床病理 骨髓瘤，又称浆细胞瘤。起源于骨髓网织细胞的恶性肿瘤，为圆而脆软的实质新生物 椎体为其