Abstract

目的 肝癌自发性破裂是一种危险的出血性并发症,其发病机制不详.我们既往的免疫组化研究已首次证实了该病人中存在血管病变现象,本实验旨在通过电子显微镜对其血管壁进行超微结构检查,以进一步证实其血管病变.方法 1995~1997年间,对11例肝癌破裂病人的手术标本与同期随机选取的11例肝癌非破裂病人手术标本,进行血管内皮细胞的透射电子显微镜检查.结果 11例肿瘤破裂的病人中,有9例病人的血管壁出现内皮细胞受损现象,包括:血管内皮细胞发生细胞连接消失、窗口直径过大及伴有高蛋白合成征象.在肿瘤非破裂的病人中,上述血管受损现象仅在2例病人中发现,二者相比有显著性差异(P<0.05).结论肝癌破裂病人中的血管内皮细胞存在通透性增加及高蛋白合成现象,其病变可能与肿瘤破裂有关。

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