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维生素C缺乏病病程变化

来源:华人健康网 | 发布时间:2010-09-28 09:16:01 | www.chinesejk.com
病程进展,可见以下几种变化:①骨皮质变薄,骨小梁结构萎缩,导致骨干透明度增加,如毛玻璃样;②上述的稀疏点或稀疏缝增大,成为全宽度的黑色带,可称为“坏血病带”;③骨化骨骺的中心亦如毛玻璃样,其周围绕以明显的白色环线,与骨干端相近处最为稠密;④在骨骺端两侧线与增厚的骺线相连处,出现细小骨刺,由于它的位置伸向侧面,称为“侧刺”(lateral spur);⑤骨膜下出血处的阴影,使受累的长骨形如杵状或梭状,有时在长骨的两个远端出血,则形成哑铃状,经治疗后其轮廓更较清楚;⑥在严重病例,还可出现骨骺与骨干分离和错位;⑦肋骨前端增宽,其顶端圆突如压舌板状,易与佝偻病肋骨的杯状末端相区别。

(编辑:小鱼 )

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