B超引导下肝胰占位性病变细针穿刺细胞学、组织学和超微结构学检查的评价

Diagnostic Value of Cytology Histology and Ultrastructure of Fine Needle Aspiration Biopsy Specimens obtained from Hepatopancreatic Nodular Lesions under the Guidance of Ultrasonography

对84例经B超和CT诊断为肝脏或胰腺占位性病变行细针穿刺细胞学、组织学和超微结构学检查。细胞学找到癌细胞的阳性率为91．66％（77／84），组织学诊断阳性率为89．28％（75／84）。组织学弥补了细胞学不能分类的缺陷，超微结构学可以提供比组织学多12．50％（4／32）的诊断信息。三种检查方法可以互补其不足，综合诊断阳性率为97．61％（82／84）。

This article described the fine needle aspiration cytology (FNAC), histology (FNAH) and ultra structurology (FNAU) under the ultrasonical guidance performed in 84 patients with hepatic and pancreatic malig nant lesions. The positive rate of FNAC was 91- 66% (77/84), that of FNAH was 89. 40% (75/84) and of FNAU was 68. 75 % (22/32). The histological examination could supplement limitation of cytological examination, which was unable to confirm the histological classification of the tumour. It was demonstrated that ultrastructurology would provide 12. 50% (4/32) more di agnostic information than that of original diagnosis by histology. The above mentioned three examinations could supplement with each other. The positive diagnostic rate might be raised to 97. 61 % (82/84) by menas of these three composite methods.