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ORIGINAL ARTICLE
Year : 2019  |  Volume : 15  |  Issue : 4  |  Page : 755-759

Diagnostic ability of percutaneous core biopsy immediately after microwave ablation for lung ground-glass opacity


1 Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong Province, China
2 Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong Province, China
3 Department of Oncology, Dongchangfu District People's Hospital Affiliated to Shandong First Medical University, Liaocheng, China

Correspondence Address:
Xin Ye
Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 324 Jingwuweiqi Road, Jinan, Shandong Province 250021
China
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jcrt.JCRT_399_19

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Objectives: The objective of this study is to determine the diagnostic ability of percutaneous core biopsy immediately after microwave ablation (MWA) for lung ground-glass opacity (GGO). Materials and Methods: Seventy-four patients with 74 lung GGOs were enrolled and treated with MWA. A percutaneous core needle biopsy was performed pre- and immediately post-MWA. All biopsy specimens were histologically examined by hematoxylin and eosin staining and immunostaining. Histologically, atypical adenomatous hyperplasia (AAH), adenocarcinoma in situ (AIS), minimally invasive adenocarcinoma (MIA), and invasive adenocarcinoma (AC) were identified as positive, while chronic inflammation or normal lung tissue was identified as negative. Results: The outcomes of pre-MWA histological diagnosis were AAH (n = 4), AIS (n = 16), MIA (n = 14), AC (n = 29), chronic inflammation (n = 2), and lung tissue (n = 9) with an 85.1% (63/74) positive diagnosis rate. The outcomes of the immediately post-MWA histological diagnosis were AAH (n = 5), AIS (n = 10), MIA (n = 11), AC (n = 29), chronic inflammation (n = 1), and lung tissue (n = 18) with a 74.3% (55/74) positive diagnosis rate. There was no significant difference in the positive diagnosis rate between the pre- and immediately post-MWA groups (P = 0.10). The outcomes of the combined diagnosis of pre- and immediately post-MWA were AAH (n = 4), AIS (n = 16), MIA (n = 16), AC (n = 31), chronic inflammation (n = 2), and lung tissue (n = 5) with a positive diagnosis rate of 90.5% (67/74), which was higher than that by pre-MWA biopsy (P < 0.05). The main complications were pneumothorax (n = 45, 60.8%), hemoptysis (n = 24, 32.4%), pleural effusion (n = 39, 52.7%), and pulmonary infection (n = 10, 13.5%). Conclusions: Immediately post-MWA core biopsy has promising efficacy for histological diagnosis of lung GGOs.


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