额颞顶枕部机化型慢性硬膜下血肿2例临床分析

2018-05-02 李瑞龙 郝解贺 临床神经外科杂志

本组2例患者均为男性,年龄分别为55岁、60岁;均有明确头部外伤史,外伤时间6个月和8个月。其中1例患者入院前在外院已行脑室-腹腔(V-P)分流术。

【一般资料】

本组2例患者均为男性,年龄分别为55岁、60岁;均有明确头部外伤史,外伤时间6个月和8个月。其中1例患者入院前在外院已行脑室-腹腔(V-P)分流术。

【现病史】

2例患者均表现为进行性头痛、头晕伴反应迟钝,一侧肢体不同程度瘫痪;其中失语1例。2例患者的凝血功能均正常。

【辅助检查】

见图1A~G。头部CT检查显示,额颞顶枕区颅骨内板下有梭形或椭圆形低或混杂密度影,边缘呈带状高密度改变,脑室受压及中线移位明显。头部MRI检查显示,病变为短T1、长T2为主的混杂信号,边界清楚、体积巨大的囊性占位。

【治疗】

2例患者均先行钻孔引流术,但引流效果差,改行骨瓣开颅手术。骨瓣开颅术后又均复发,再行钻孔引流术。骨瓣开颅手术采用左侧额颞顶枕大骨瓣翻转入路,术中见硬脑膜与包膜粘连,伴有不同程度新生毛细血管;切开包膜见大量黄褐色奶酪凝固病变组织(量约100ml),予以清除;包膜多呈浅黄色,厚度约0.2~0.3cm,质韧或硬,部分与蛛网膜粘连;壁层包膜与局部增厚的蛛网膜相延续(图1H)。沿包膜边缘切开,将包膜与蛛网膜分离,切除包膜。止血彻底后,用生理盐水和双氧水反复冲洗血肿腔,骨瓣复位,置硬膜下引流管,常规关颅。术后第2d复查头颅CT示,脑复位理想;但1周后复查头颅CT发现2例患者硬膜下血肿均复发,仍为低密度占位,左侧脑室及中线结构受压。即行钻孔硬膜下置管引流术,引流液呈红褐色,稀薄状,继续置管引流;并用生理盐水冲洗血肿腔,每天1次,连续3d后拔管。第7d复查头颅CT,2例患者的血肿均消失,无复发。5.病理学检查2例患者术后病理学检查的结果均为血肿机化。术中可见病变处有血凝块、炎性肉牙组织和含铁血黄素沉着。




图1A:术前头颅CT,左侧额颞顶枕颅板下新月状不均匀低密度影,少许略高密度影,皮层脑沟、左侧脑室受压内移,中线结构右移,低密度区与脑组织界限清晰;B、C、D:术前头颅MRI,病变呈短T1、长T2为主的混杂信号,边界清楚,体积巨大的囊性占位;E:骨瓣开颅血肿清除术后3d头颅CT;F:1周后头颅CT,左额部血肿复发,不均匀低密度影;G:二次钻孔引流术后头颅CT,血肿消失,气颅;


图1H:骨瓣开颅手术中所见,肿块呈灰黄色,块状覆盖于脑组织上,包膜及边界清晰,易与硬膜及蛛网膜剥离,质地较韧,几无血供

原始出处:

李瑞龙, 郝解贺. 额颞顶枕部机化型慢性硬膜下血肿2例临床分析[J]. 临床神经外科杂志, 2017, 14(5):393-395.

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