Prognostic Impact of Primary Tumor Size in Thymic Epithelial Tumor: An NCDB-Based Study.

Background: Thymic epithelial tumor (TET) staging has been based on Masaoka-Koga systems or the 8th edition of the TNM classification, which do not use tumor size as a T descriptor. The 9th edition of the TNM classification incorporates tumor size; however, the study on which this classification is based included only 4.4% of patients from North America.

Impact of the distance of spread through air spaces in non-small cell lung cancer.

Objectives: Spread through air spaces (STAS) is considered a poor prognostic factor in patients with resected non-small lung cell cancer; however, the clinical significance of STAS extent remains unclear. We hypothesized that the further the tumour cells spread from the tumour edge, the worse the prognosis becomes.

Methods: This study retrospectively reviewed the data of 642 patients with completely resected pathological stage I-III non-small lung cell cancer between 2008 and 2018.

Is Sublobar Resection Feasible for High-Risk Pathologic Stage I Non-small Cell Lung Cancer?

Background: Sublobar resection is the standard procedure for cT1N0 stage I non-small cell lung cancer (NSCLC) size ≤2 cm. However, its efficacy for high-risk pathologic stage I cases with a preoperative diagnosis of cT1N0 stage I NSCLC size ≤2 cm remains unclear. This study compared the outcomes of sublobar resection with those of lobectomy from a pathologic perspective.