Pulmonary Segmentectomy for Lung Cancer: A Real-World International Registry-TSOG 108

Inclusion Criteria

• * Age ≥ 18 years * Clinical Stage I with suspected NSCLC, classified preoperatively based on the AJCC TNM staging manual, 9th edition. ** Note: Tissue diagnosis of NSCLC is not required before enrollment. A pathologic diagnosis of NSCLC may be confirmed preoperatively with biopsy, intraoperatively with frozen section, or postoperatively on final pathology

Exclusion Criteria

• * Actively receiving lung cancer treatment or a history of lung cancer in the previous 5 years * History of chemotherapy or radiation therapy for a previous lung cancer * Synchronous primaries or secondary cancer in the lung or elsewhere in the body at the time of surgery * Carcinoid tumors * History of other malignancies within the past 3 years, with the exception of nonmelanoma skin cancer, superficial bladder cancer, hematogenous malignancies, and carcinoma in situ of the cervix * Actively receiving treatment for other malignancies * Cases of lobectomy in conjunction with segmentectomy from another lobe and ≥ 2 segmentectomies from different lobes either en bloc or separate will be excluded from the primary analysis. ** Multi-segmental resection from the same lobe is not a criterion for exclusion