KMID : 0383820110700040330
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Tuberculosis and Respiratory Diseases 2011 Volume.70 No. 4 p.330 ~ p.337
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Clinicopathologic Characteristics of Recurrence after Curative-intent Surgical Therapy of Non-small Cell Lung Cancer
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Song Sung-Heon
Sohn Jang-Won Kwak Hyun-Jung Kim Sa-Il Lee Seung-Ho Kim Sang-Heon Kim Tae-Hyung Yoon Ho-Joo Shin Dong-Ho Park Sung-Soo
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Abstract
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Background: The clinicopathologic characteristics of patients with non-small cell lung cancer (NSCLC) have been changing. Recently, Positron emission tomography-computed tomography (PET-CT) has usually been used for diagnosis, follow-up to treatment and surveillance of NSCLC. We studied the pattern of recurrence and prognosis in patients who underwent complete resection for NSCLC according to histologic subtype.
Materials and Methods : All patients who underwent complete resection for pathological stage I or II NSCLC between January 2005 and June 2009 were identified and clinical records were reviewed retrospectively, especially the histologic subtype.
Results: Recurrences were identified in 50 of 112 patients who had complete resection of an NSCLC. Sites of recurrence were locoregional in 15 (30%), locoregional and distant in 20 (40%), and distant in 15 (30%). Also, sites of recurrence were intra-thoracic in 29 (58%), extrathoracic and intra-thoracic recurrence in 15 (30%), and extrathoracic in 6 (12%). In locoregional recurrence, there was 37% recurrence for non-squamous cell carcinoma (non-SQC) and 25% for squamous cell carcinoma (SQC). In distant recurrence, there was 39% recurrence for non-SQC and 18% for SQC. Locoregional recurrence in the bronchial stump was more common in SQC than non-SQC (14% vs. 45%, p=0.025). Prognosis of recurrence was not influenced by histologic subtype and the recurrence-free survival curve showed that the non-SQC group did not differ from the SQC group according to stage.
Conclusions : The prognosis for recurrence does not seem to be influenced by histologic types, but locoregional recurrence in the bronchial stump seems to be more common in SQC than non-SQC in completely resected stage I and II NSCLC.
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KEYWORD
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Carcinoma, Non-Small-Cell Lung, Recurrence, Prognosis, Histology
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