患者男,38岁。反复腰痛6个月余,伴臀部、左下肢麻木7天。体检:左下肢感觉减退,余无异常。实验室检查:血生化(-)。影像学检查:X线腰椎正侧位片(图1、2)见L4椎体稍变扁,椎体左侧及左侧横突见明显骨质吸收破坏,皮质部中断,边缘稍膨隆,未见明显软组织肿块影。CT扫描(图3)示L4椎体左 Male patient, 38 years old. Repeated low back pain more than 6 months, with the buttocks, left lower limb numbness 7 days. Physical examination: left lower extremity feeling diminished, I no exception. Laboratory examination: Blood biochemistry (-). Radiographic examination: X-ray lumbar is the lateral radiographs (see Figure 1,2) see L4 vertebral slightly flattened, left and left vertebral transverse transverses showed obvious destruction of bone absorption, cortical disruption, margin slightly bulging, not See obvious soft tissue mass. CT scan (Figure 3) shows L4 vertebra left