Abstract
With the development of CT technology and the initiation of CT screening for lung cancer, many small nodules, especially ones exhibiting ground glass opacity (GGO) on CT images, are now frequently detected
Highlights
With the development of CT technology and the initiation of CT screening for lung cancer, many small nodules, especially ones exhibiting ground glass opacity (GGO) on CT images, are frequently detected
Patient age, sex, tumor size, and a ratio of the diameter of consolidation relative to the tumor diameter (CTR) were considered as variables that were potentially associated with tumor growth and were analyzed using a regression tree method and classified into subgroups according to the frequency of tumor growth
Tumor size, and CTR factors were selected as variables in the split steps, but sex was not selected
Summary
With the development of CT technology and the initiation of CT screening for lung cancer, many small nodules, especially ones exhibiting ground glass opacity (GGO) on CT images, are frequently detected. How these small nodules should be managed remains a topic of interest. We previously reported the results of a long-term follow-up of 243 patients with pure or mixed GGOs of 3 cm or smaller in size[1]. Of these 243 patients, 39 patients showed tumor growth during the follow-up period. We analyzed the data of the previous study and attempted to identify clinical factors that were associated with future tumor growth or stable disease
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