长节段髓内畸胎瘤影像学表现1例

Imaging findings of long-segmentint ramedullary teratoma:one case report

患者男,39岁。因“右上肢、右前胸和右后背疼痛麻木20余天”入我院。查体:脊柱侧弯,右侧T_(2)~T_(10)水平浅感觉减退,右上肢发作性疼痛过敏。影像学检查:CT平扫矢状位:C_(2)~T_(1)水平脊髓内条形低密度影(图1)。MRI矢状位:平扫C_(2)~L_(2)水平脊髓增粗,髓内可见条形异常信号,T_(1)WI以低信号为主,内伴条状、不规则高信号,T_(2)WI呈不均匀高信号(图2~4),T_(1)WI反相位原T_(1)WI高信号范围减小,T_(1)WI脂肪抑制原T_(1)WI高信号影消失;增强扫描病变在C_(5)~T_(2)水平结节状明显强化(图5),T_(3)~T_(11)水平边缘环形强化.