脑内瘢痕的CT与病理对照研究

CT and Patologic Correlative Study of Intracerebral Cicatrix

作者搜集有ＣＴ及病理资料的脑内瘢痕１０例，术前ＣＴ诊断均为“脑软化”。其表现为脑质内的低密度灶，８例有负占位效应。手术中见６例呈灰白色略硬的纤维样组织，８例有病理资料者，镜下均有不同程度的胶质纤维增生。经对照分析，脑内瘢痕虽有明显的胶质纤维增生，ＣＴ图像上仍呈低密度灶，其密度高低不能反映胶质增生的程度。镜下纤维含量越多者，ＣＴ图像上负占位效应越明显。作者还分析了脑内瘢痕的病理及ＣＴ表现的演变。

Ten cases of intracerebral cicatrix documented by operation and pathology were re-viewed.Before operat ion all pat ients were diagnosed as partial cerebral softe ning based on CT im-ages. The main CT findings included intracerebral hypodense areas in all patients and negative mass effect in 8 patients. In 6 patients the lesions grossly were clearly whitish gray fibrotic tissue on opera-tion. In 8 patients who had pathologic study,various degrees,of fibrous tissue proliferation were seen under microscope. Although fibrous tissue was obvious,the lesion,still manifested as hypo-dense areas on CT image. Th degree of fibrosis could not be distinguished by density. The negative mass effect was more pronounced On CT image,with more abundant fibrous tissue being present.The development of pathological process of cicatrix and CT manifestations were also analyzed.