CT-Guided FNAC of Lung Lesions and Cytological Sub-Classification of Bronchogenic Carcinoma of 246 cases at a Tertiary Care Hospital

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Abstract

Background: CT-guided fine needle aspiration cytology (FNAC) is a useful tool for evaluating lung nodules or masses. In view of the relative paucity of published studies regionally, this study was undertaken in the Department of Pathology, Enam Medical College & Hospital to see the use of the technique. Materials and Methods: Two forty six CT guided lung FNACs were performed during January 2017 to December 2018 and cytological diagnoses were made. Reported results and relevant data were recorded in the data sheet and then analyzed by standard statistical method. Results: Total number of cases were 246. Adequate samples were obtained in 228 (92.68%) cases, among the adequate samples 135 (59.41%) were malignant, and 93 (40.49%) were benign or nonmalignant lesions. Among the benign lesions, lung abscess (36;38.70%) was the most common followed by pulmonary TB (27;29.03%). Adenocarcinoma (54;40%) was the most common type of bronchogenic carcinoma followed by squamous cell carcinoma (51;37.78%), small cell carcinoma (21;15.56%), NHL (6;4.44%) and large cell undifferentiated carcinoma (3;2.22%). In male persons, squamous cell carcinoma (42.85%) was the most common type of bronchogenic carcinoma, followed by adenocarcinoma (34.29%). In female, adenocarcinoma was the most common type (18;60%) of bronchogenic carcinoma, followed by squamous cell carcinoma (6;20%). Conclusion: FNAC is a safe method for the evaluation of lung nodules and it enables sub-classification of bronchogenic carcinoma in the vast majority of cases. It is also useful for the diagnosis of tuberculous pulmonary nodules. J Enam Med Col 2020; 10(3): 169-173
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CT引导下的FNAC对某三甲医院246例肺癌的诊断及细胞学分型
背景:CT引导下的细针穿刺细胞学(FNAC)是评估肺部结节或肿块的有用工具。鉴于该地区已发表的研究相对较少,本研究在搪瓷医学院和医院病理学系进行,以了解该技术的使用情况。材料和方法:在2017年1月至2018年12月期间,共进行了46次CT引导下的肺部FNAC检查,并进行了细胞学诊断。报告的结果和相关数据记录在数据表中,然后通过标准统计方法进行分析。结果:总病例数246例。228例(92.68%)获得了足够的样本,其中135例(59.41%)为恶性,93例(40.49%)为良性或非恶性病变。在良性病变中,肺脓肿(36;38.70%)最常见,其次是肺结核(27;29.03%)。腺癌(54;40%)是最常见的支气管癌类型,其次是鳞状细胞癌(51;37.78%)、小细胞癌(21;15.56%)、NHL(6;4.44%)和大细胞未分化癌(3;2.22%)。在男性中,鳞状细胞癌(42.85%)是最常见的支气管癌类型,其次是腺癌(34.29%)。女性支气管癌中腺癌最常见(18;60%),其次是鳞状细胞癌(6.20%)。结论:FNAC是一种安全的评估肺结节的方法,它可以对绝大多数病例进行支气管癌的亚分类。它也可用于诊断结核性肺结节。《搪瓷医学杂志》2020;10(3):169-173
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