No abstract

The solid tumor size on high-resolution computed tomography and maximum standardized uptake values on positron emission tomography/computed tomography have greater predictive value for high-grade malignancy and prognosis in clinical stage IA lung adenocarcinoma than that of whole tumor size.

Segmentectomy is suitable for clinical stage IA lung adenocarcinoma, with survivals equivalent to those of standard lobectomy.

Maximum standardized uptake value is a significant preoperative predictor for surgical outcomes. High-resolution computed tomography and fluorodeoxyglucose-positron emission tomography/computed tomography findings are important to determine the appropriateness of sublobar resection for treating clinical stage IA adenocarcinoma of the lung.

Either a solid tumor size or an SUVmax was a significant independent predictor of nodal involvement in clinical stage IA lung adenocarcinoma. The pathologic node-negative status criteria of a solid tumor size of less than 0.8 cm on HRCT or an SUVmax of less than 1.5 on FDG-PET/CT may be helpful for avoiding systematic lymphadenectomy for clinical stage IA lung adenocarcinoma, even in cases of T1b (2-3 cm) tumor.