• Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, P.R.China;
TAN Lijie, Email: tan.lijie@zs-hospital.sh.cn
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Objective To investigate the association between the baseline 18F-FDG PET/CT SUVmax and histological subtypes of ≤2 cm early peripheral lung adenocarcinoma (cN0).Methods We retrospectively reviewed the clinical data of consecutive patients who received baseline 18F-FDG PET/CT and underwent anatomic lung resection for ≤2 cm early peripheral lung adenocarcinoma from 2011 to 2014 in our institute.Results A total of 195 patients were enrolled in this study, including 86 males and 109 females, with an average age of 59.96±9.19 years. Twenty-two patients were pathologically confirmed with lymph node metastasis. One hundred and fifty-seven patients were in the subtype group 1, which included lepidic, acinar, and papillary predominant tumors. Thirty-eight patients were in the subtype group 2, which included solid and micropapillary predominant tumors. The 5-year survival rate was 79.0% and 58.0% in the subtype group 1 and subtype group 2, respectively (P=0.006). The median SUVmax was 2.00 (0.30-13.10) and 4.15 (1.20-17.90) in the subtype group 1 and subtype group 2, respectively (P=0.000). Logistic regression suggested that baseline SUVmax≥2.5 was an independent risk factor for the subtype group 2 (OR=6.635, 95%CI 2.510-17.545, P=0.000). The receiver operating characteristic curve suggested that the continuous SUVmax had an moderate predictive value for subtypes (area under the curve was 0.792, 95%CI 0.717-0.866).Conclusion Baseline 18F-FDG PET/CT SUVmax has certain predictive value for histological subtypes of ≤2 cm early peripheral lung adenocarcinoma.

Citation: LIN Dong, WANG Shuai, CHEN Xiaosang, TAN Lijie. Association between baseline SUVmax and histological subtypes of ≤2 cm early peripheral lung adenocarcinoma. Chinese Journal of Clinical Thoracic and Cardiovascular Surgery, 2020, 27(10): 1182-1186. doi: 10.7507/1007-4848.202002120 Copy

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