LEP and neoplasm: A total of 153 acinar/papillary-predominant lung adenocarcinoma patients with tumor size ≤4 cm were classified into four risk subgroups based on the presence of lepidic and micropapillary/solid components: MP/S−Lep+, MP/S+Lep+, MP/S−Lep−, and MP/S+Lep− groups.