Reasonable Extent of Lymph Node Dissection in Intentional Segmentectomy for Small- Sized Peripheral Non–Small-Cell Lung Cancer: From the Clinicopathological.

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Reasonable Extent of Lymph Node Dissection in Intentional Segmentectomy for Small- Sized Peripheral Non–Small-Cell Lung Cancer: From the Clinicopathological Findings of Patients Who Underwent Lobectomy with Systematic Lymph Node Dissection Yuki Matsumura, MD, Tomoyuki Hishida, MD, Junji Yoshida, MD, Keiju Aokage, MD, Genichiro Ishii, MD, Kanji Nagai, MD Journal of Thoracic Oncology Volume 7, Issue 11, Pages 1691-1697 (November 2012) DOI: 10.1097/JTO.0b013e31826912b4 Copyright © 2012 International Association for the Study of Lung Cancer Terms and Conditions

FIGURE 1 Diagram of an iLSN in the right bronchus. If the tumor was located in the superior or anterior segment of the right upper lobe (S1 or S3), station 11s was categorized as iLSN. The node located in a different segmental bronchus was also classified as iLSN. iLSN, isolated lobar-segmental lymph node. Journal of Thoracic Oncology 2012 7, 1691-1697DOI: (10.1097/JTO.0b013e31826912b4) Copyright © 2012 International Association for the Study of Lung Cancer Terms and Conditions

FIGURE 2 Patient characteristics. GGO, ground grass opacity; LCNEC, large-cell neuroendrocrine carcinoma; LN, lymph node; NSCLC, nonsmall-cell lung cancer; SCLC, small-cell lung cancer; TSCT, thin-slice computed tomography; Journal of Thoracic Oncology 2012 7, 1691-1697DOI: (10.1097/JTO.0b013e31826912b4) Copyright © 2012 International Association for the Study of Lung Cancer Terms and Conditions

FIGURE 3 Distribution patterns of lymph node metastases with LSN node involvement. A, Among the patients with LSN metastases (n = 22), 6 patients had metastases in the LSN only. B, Among the patients without LSN metastases (n = 12), 10 patients had metastases in the mediastinal stations only (skip N2). LSN, lobar-segmental lymph node. Journal of Thoracic Oncology 2012 7, 1691-1697DOI: (10.1097/JTO.0b013e31826912b4) Copyright © 2012 International Association for the Study of Lung Cancer Terms and Conditions

FIGURE 4 The distribution pattern of 6 patients with metastases to the LSN only. A represents the right lung and B represents the left lung. No patients had solitary metastasis in isolated LSNs. LSN, lobar-segmental lymph node; ds13, different segmental station 13 node; ss13, same segmental station 13 node. Journal of Thoracic Oncology 2012 7, 1691-1697DOI: (10.1097/JTO.0b013e31826912b4) Copyright © 2012 International Association for the Study of Lung Cancer Terms and Conditions