{"title":"Comparison of ThinPrep Cytology and Conventional Cytology in Bronchial Washing for Lung Cancer.","authors":"Jungsuk An, H. Cho, D. Chung, S. Ha","doi":"10.6058/JLC.2012.11.2.84","DOIUrl":"https://doi.org/10.6058/JLC.2012.11.2.84","url":null,"abstract":"Purpose: Liquid-based cytology have been developed and currently used to overcome the limitation of conventional cytology. This study aims to evaluate the differences between conventional cytology and ThinPrepⓇ in the bronchial washing. Materials and Methods: Both conventional cytology and ThinPrep Ⓡ were performed in the 2,551 cases of bronchial washing, of which, 116 cases of histologically diagnosed as lung cancer were evaluated. Results: Among the 116 cases, 23 and 4 cases were negative in conventional cytology and ThinPrepⓇ , respectively. The thirty eight cases in conventional cytology and 30 cases in ThinPrep Ⓡ were diagnosed as “atypical.” Malignant carcinoma was 54 cases and 82 cases in conventional cytology and ThinPrep Ⓡ , respectively. The positive predictive value, negative predictive value, sensitivity and specificity were 98.94%, 99.06%, 80.17%, and 99.96%, respectively in conventional cytology. Those were 99.12%, 99.83%, 96.55% and 99.96%, respectively in ThinPrepⓇ . Conclusion: ThinPrep Ⓡ (liquid-based cytology) revealed higher sensitivity and lower false negative rate than conventional cytology. ThinPrepⓇ has many advantages to diagnose the lung cancer from bronchial washing cytology. (J Lung Cancer 2012;11(2):84�� 88)","PeriodicalId":90901,"journal":{"name":"Journal of lung cancer","volume":"11 1","pages":"84-88"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.6058/JLC.2012.11.2.84","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71162125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Lee, Soomin Ahn, Y. Shim, Y. Choi, K. Lee, Joungho Han
{"title":"Solitary Capillary Hemangioma of the Lung: A Report of Two Cases","authors":"H. Lee, Soomin Ahn, Y. Shim, Y. Choi, K. Lee, Joungho Han","doi":"10.6058/JLC.2012.11.2.102","DOIUrl":"https://doi.org/10.6058/JLC.2012.11.2.102","url":null,"abstract":"It has long been recognized that tumors of capillary vessels in the lung are extremely rare. While pulmonary capillary hemangiomatosis, which is a rare cause of pulmonary hypertension, is relatively well known, there have been only a few reports of solitary capillary hemangioma (SCH) of the lung. Herein we report two cases of SCH. Both cases were first detected as a solitary nodule of the lung in chest computed tomography images. Both lesions were recognized as early lung cancer and surgical resections were performed. At low power view, one was not encapsulated but was well delineated from the non-neoplastic lung and the other was pseudo-capsulated. Both tumors consisted of uniform capillaries with cuboidal or flattened endothelial cells. There was no cytologic atypia. Endothelial cells were highlighted by CD31 stain. Awareness of this entity is important for pathologists for differential diagnosis of a solitary pulmonary nodule. (J Lung Cancer 2012;11(2):102�� 104)","PeriodicalId":90901,"journal":{"name":"Journal of lung cancer","volume":"11 1","pages":"102-104"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.6058/JLC.2012.11.2.102","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71162414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mechanisms of Acquired Resistance to Epidermal Growth Factor Receptor Inhibitors and Overcoming Strategies in Lung Cancer.","authors":"Chang-Min Choi, Jae Cheol Lee","doi":"10.6058/JLC.2012.11.2.59","DOIUrl":"https://doi.org/10.6058/JLC.2012.11.2.59","url":null,"abstract":"Although epidermal growth factor receptor tyrosine kinase inhibitors (EGFRTKIs) such as gefitinib and erlotinib show good response and survival benefit in EGFR-mutant lung cancer, acquired resistance inevitably develops which limits the median response duration to around 1 year. Secondary T790M gatekeeper mutation is the most common mechanism representing approximately 50% of resistance. The suggested strategies for overcoming T790M including irreversible EGFR-TKIs, mutant-selective EGFR-TKIs, EGFR dual targeting and HSP90 inhibitors should be further investigated for clinical application. Bypass signals through MET or AXL also contribute to resistance, which lead to development of MET or AXL inhibitors. Other mechanisms such as small cell transformation, epithelial-to-mesenchymal transition, PI3KCA mutation, ERK/ HER2 amplification and miRNAs are other suggested candidates awaiting validation. As many resistant mechanisms have been recognized, it is important to obtain tissue samples after resistance to provide appropriate treatment. In this review, recent advances in the understanding of resistance and novel ways of overcoming it are discussed. (J Lung Cancer 2012;11(2):59�� 65)","PeriodicalId":90901,"journal":{"name":"Journal of lung cancer","volume":"11 1","pages":"59-65"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.6058/JLC.2012.11.2.59","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71162212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mixed Squamous Cell and Glandular Papilloma Presented with Peripheral Lung Mass: A Case Report.","authors":"S. Jang, Taesung Kim, J. Zo, Joungho Han","doi":"10.6058/JLC.2012.11.2.94","DOIUrl":"https://doi.org/10.6058/JLC.2012.11.2.94","url":null,"abstract":"Mixed squamous cell and glandular papilloma is a rare pulmonary neoplasm typically occurring in the central lung area. Herein, we report a case of peripherally located mixed papilloma in a 54-year-old man with a complaint of dyspnea. Chest computed tomography demonstrated an infiltrative peripheral lung mass in the right middle lobe, measuring 1.5 cm in diameter. The resected lung tumor had papillary configuration lined by both squamous cell epithelium and mucin-containing glandular epithelium. The papillary stroma showed a fibrovascular core with inflammatory infiltrates. p63 immunostaining was positive in basal and parabasal tumor cells in papillary fronds. (J Lung Cancer 2012;11(2):94�� 96)","PeriodicalId":90901,"journal":{"name":"Journal of lung cancer","volume":"11 1","pages":"94-96"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.6058/JLC.2012.11.2.94","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71162351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ji Young Park, Taehoon Lee, Hongyeul Lee, Hyo‐Jeong Lim, Jong-Sun Park, Y. Cho, H. Yoon, Jae Ho Lee, K. Lee, Bo-Seong Kim, Jin-Haeng Chung, Kwhanmien Kim, C. Lee
{"title":"A Case of Lung Squamous Cell Carcinoma Mimicking Benign Solitary Cyst","authors":"Ji Young Park, Taehoon Lee, Hongyeul Lee, Hyo‐Jeong Lim, Jong-Sun Park, Y. Cho, H. Yoon, Jae Ho Lee, K. Lee, Bo-Seong Kim, Jin-Haeng Chung, Kwhanmien Kim, C. Lee","doi":"10.6058/JLC.2012.11.2.108","DOIUrl":"https://doi.org/10.6058/JLC.2012.11.2.108","url":null,"abstract":"Lung cancer with cyst formation is a rare entity. We report a 63-year-old man who underwent surgical treatment of primary lung cancer, which mimics benign solitary cyst. We incidentally found his pulmonary cyst by a low dose chest tomography and followed up for 2 years. Rapid growth of cyst and focal wall thickening evoke us to have a suspicion of its malignancy. Left lower lobectomy via video-assisted thoracoscopic surgery was performed without any preoperative pathologic confirmation. The postoperative pathological finding revealed squamous cell carcinoma with carcinoma in situ on the cyst wall. We emphasize the need for physicians to be aware of the potential of lung cancer in patients with growing pulmonary cyst. (J Lung Cancer 2012;11(2):108�� 110)","PeriodicalId":90901,"journal":{"name":"Journal of lung cancer","volume":"11 1","pages":"108-110"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.6058/JLC.2012.11.2.108","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71162100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hyun-Wook Kang, Chanwoo Park, W. Kim, Sang‐Yun Song, K. Na, J. Jeong, M. Yoon, S. Ahn, Y. Choi, Chan Choi, Daun Lee, H. Seon, Y. Kim, S. Kwon, H. Bom, I. Oh, K. S. Kim, Young-chul Kim
{"title":"Never-Smoker Lung Cancer Is Increasing","authors":"Hyun-Wook Kang, Chanwoo Park, W. Kim, Sang‐Yun Song, K. Na, J. Jeong, M. Yoon, S. Ahn, Y. Choi, Chan Choi, Daun Lee, H. Seon, Y. Kim, S. Kwon, H. Bom, I. Oh, K. S. Kim, Young-chul Kim","doi":"10.6058/JLC.2012.11.2.89","DOIUrl":"https://doi.org/10.6058/JLC.2012.11.2.89","url":null,"abstract":"Purpose: Lung cancer has been the leading cause of death in South Korea since the year 2000. Adenocarcinoma became the most frequent type in the national survey of lung cancer since year 2005. Materials and Methods: We analyzed 5,456 cases with lung cancer from 2004 to 2012 in a community cancer center. The mean age was 69.9 years, and 78.9% was male. Results: Adenocarcinoma (ADC, 40.8%) was the most frequent type, followed by squamous cell carcinoma (SQC, 36.4%), small cell carcinoma (SCC, 14.8%) and non-small cell lung cancer (NSCLC) not otherwise specified (8.1%). In male patients, SQC was the most frequent type (43.5%), while ADC showed highest incidence in females (72.6%). Anatomic stage at diagnosis in NSCLC was I (10.3%), II (5.8%), IIIA (15.7%), IIIB (19.2%), and IV (49.0%). In SCC, 41.7% was in limited stage and 58.3% was diagnosed in extensive stage. The proportion of never smoker has been increased from 19.1% in 2004 ∼2008 to 25.4% in 2009∼2012. Never-smokers are more likely to be female (68.2% vs. 4.0%, p<0.001), have ADC (69.9% vs. 31.3%, p<0.001), and manifest as stage IV disease (58.5% vs. 45.2%, p<0.001), compared to smokers. Among 1,908 cases whose initial treatment was recorded, 42.5% received chemotherapy, 25.7% received radiation treatment, 20.5% received surgery and the remaining 11.3% received supportive cares only or transferred to other health care facilities. Conclusion: In conclusion, proportion of lung cancer in never-smoker is increasing. As screening for smokers will miss this growing population, we need to discover biomarkers to find high risk population of lung cancer. (J Lung Cancer 2012;11(2):89�� 93)","PeriodicalId":90901,"journal":{"name":"Journal of lung cancer","volume":"18 1","pages":"89-93"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.6058/JLC.2012.11.2.89","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71162201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Hong, Y. Choi, S. K. Do, H. Jeon, S. Yoo, W. Lee, Shin‐Yup Lee, Jaehee Lee, S. Cha, C. Kim, E. Lee, J. Park
{"title":"Association between Lung Cancer Susceptibility Variants Identified by Genome-Wide Association Studies and the Survival of Non-Small Cell Lung Cancer","authors":"M. Hong, Y. Choi, S. K. Do, H. Jeon, S. Yoo, W. Lee, Shin‐Yup Lee, Jaehee Lee, S. Cha, C. Kim, E. Lee, J. Park","doi":"10.6058/JLC.2012.11.2.66","DOIUrl":"https://doi.org/10.6058/JLC.2012.11.2.66","url":null,"abstract":"Purpose: Nowadays, chromosomal regions containing genes associated with the risk of lung cancer are identified by a number of genome-wide association studies (GWASs). As part of the study, GWAS has identified the association of six chromosomal regions, 1q23, 4q22, 4q31, 5p15, 6p21, and 15q25, as being associated with lung cancer risk in the European population. We investigated the impact of genetic variants identified in GWASs for lung cancer susceptibility on the survival outcomes in patients with early stage non-small cell lung cancer (NSCLC). Materials and Methods: Three hundred and sixty-three patients with surgically resected NSCLC were enrolled. Eight single nucleotide polymorphisms (SNPs), rs2808630 on 1q23, rs7671167 on 4q22, rs1489759 and rs2202507 on 4q31, rs2736100 and rs402710 on 5p15, rs1052486 on 6p21 and rs16969968 on 15q25, were genotyped using a polymerase chain reaction-restriction fragment length polymorphism assay. The associations between genotypes and overall survival (OS) and disease-free survival (DFS) were analyzed. Results: None of the eight SNPs were significantly associated with OS or DFS. In addition, when the patients were categorized according to age, gender, smoking status, tumor histology and pathologic stage, there were no significant associations between the eight SNPs and the survival outcomes. Conclusion: These results suggest that the genetic variants identified by GWASs for lung cancer susceptibility may not affect the prognosis of early stage NSCLC. (J Lung Cancer 2012;11(2):66�� 70)","PeriodicalId":90901,"journal":{"name":"Journal of lung cancer","volume":"122 1","pages":"66-70"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.6058/JLC.2012.11.2.66","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71162488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"MDA-7/IL-24 Expression and Its Relation with Clinicopathologic Factors in Lung Adenocarcinomas of 3 cm or Less in Diameter.","authors":"M. Roh, P. Choi, C. Son, Soo Keol Lee","doi":"10.6058/JLC.2012.11.2.71","DOIUrl":"https://doi.org/10.6058/JLC.2012.11.2.71","url":null,"abstract":"Purpose: The melanoma differentiation-associated gene-7 (MDA-7) protein, also known as interleukin 24 (IL-24), is a novel candidate of tumor suppressor that has been found to experimentally induce apoptosis and growth inhibition in a variety of human malignant cells. However, there have been few studies about its role in lung adenocarcinoma. Even at the same stage and with similar pathologic characteristics, lung adenocarcinomas with a diameter of 3 cm or less can have a variable prognosis depending on their biologic characteristics. The purpose of this study is to define the relationship between MDA-7/IL-24 expression and the progression of small-sized lung adenocarcinomas. Materials and Methods: We performed immunohistochemical detection of MDA-7/ IL-24 in forty-seven tissue samples from primary lung adenocarcinomas of ≤3 cm in diameter by using tissue microarray. Results: MDA-7/IL-24 immunoreactivity was observed in 20 (42.6%) of the 47 adenocarcinoma cases. MDA-7/IL-24 expression was positive in 66.7% of the adenocarcinomas ≤2 cm, and in 31.3% of the adenocarcinomas >2 cm or ≤3 cm in diameter. A statistically significant association was found between MDA-7/IL-24 expression and tumor size (p=0.03). Although this difference did not reach statistical significance, tumors with a negative MDA-7/IL-24 expression tended to more frequently show lymph node metastasis (p=0.07). There were no significant associations for other clinicopathologic characteristics. Conclusion: These results suggest the possible involvement of MDA-7/IL-24 in the growth and progression of small-sized lung adenocarcinoma. MDA-7/IL-24 immunoreactivity could be used to identify a subset of adenocarcinomas of the lung of 3 cm or less in diameter that have different biologic behavior. (J Lung Cancer 2012;11(2): 71�� 76)","PeriodicalId":90901,"journal":{"name":"Journal of lung cancer","volume":"11 1","pages":"71-76"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.6058/JLC.2012.11.2.71","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71162433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Bilateral Diffuse Radiation Pneumonitis Caused by Unilateral Thoracic Irradiation: A Case Report","authors":"S. H. Song, Y. Oh, C. Ha, Soo-Min Chae","doi":"10.6058/JLC.2012.11.2.97","DOIUrl":"https://doi.org/10.6058/JLC.2012.11.2.97","url":null,"abstract":"Radiation therapy is one of the most important therapeutic modalities for the treatment of lung cancer. Radiation pneumonitis is one of the important complications associated with radiotherapy for lung cancer. Radiation pneumonitis is generally limited to the irradiated lung and is manifested by the insidious onset of dry cough, dyspnea, and mild fever, resulting in damage and edematous changes of alveolar structures on histologic inspection. Clinically, diffuse bilateral radiation pneumonitis accompanied with acute symptoms after unilateral thoracic irradiation appears very rarely. Histopathologic examinations for the diagnosis of out-of-field radiation pneumonitis are rarely performed. We herein describe a case of extensive bilateral radiation pneumonitis which developed acutely after salvage radiotherapy for squamous cell carcinoma in the left upper lobe of the lung. The condition was confirmed by a diagnostic help of histopathologic findings. (J Lung Cancer 2012;11(2):97�� 101)","PeriodicalId":90901,"journal":{"name":"Journal of lung cancer","volume":"11 1","pages":"97-101"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.6058/JLC.2012.11.2.97","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71162509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Y. Jung, Sun Jung Park, S. Lee, Y. T. Kim, JooYeon Park, I. Park, C. Kang, Joo Hyun Kim
{"title":"Screening of Epidermal Growth Factor Receptor Gene Mutation in Non-Small Cell Lung Cancer Using a PCR-Based Enzymatic Digestion Method","authors":"Y. Jung, Sun Jung Park, S. Lee, Y. T. Kim, JooYeon Park, I. Park, C. Kang, Joo Hyun Kim","doi":"10.6058/JLC.2012.11.2.77","DOIUrl":"https://doi.org/10.6058/JLC.2012.11.2.77","url":null,"abstract":"Purpose: We applied a simplified method using polymerase chain reaction (PCR)-based enzymatic digestion for the detection of epidermal growth factor receptor ( EGFR) mutation. Materials and Methods: We selected 74 samples of adenocarcinoma of the lung with EGFR exons 19 and 21 that had been previously sequenced. We designed PCR primers and chose a DNA restriction enzyme. Seventy four additional lung cancer samples were tested as a test set. For test sets, the PCR-based method was performed first, followed by validation of the result by DNA sequencing. Results: In the first sample group, we found 15 (20.3%) mutations in exon 19, and 9 (12.2%) mutations in exon 21 using the sequencing method. By using the PCR-based method, we were able to identify all of the mutated samples detected by the sequencing method. The PCR-based method also detected mutations in exon 19 in three additional samples and in exon 21 in one additional sample. In the second sample group, by performing the PCR-based method, we found 10 (13.5%) and 7 (9.5%) mutations in exons 19 and 21, respectively. Additional mutations in exon 19 were identified in 2 samples by the sequencing method. However, the sequencing method failed to identify a mutation in exon 21 in one sample. Conclusion: The sensitivity of the PCR-based enzymatic digestion method seems to be comparable to that of the traditional sequencing method for detecting EGFR mutations. Our method can be widely used as a screening test to select patients who may benefit from EGFR targeted therapy. (J Lung Cancer 2012;11(2):77�� 83)","PeriodicalId":90901,"journal":{"name":"Journal of lung cancer","volume":"11 1","pages":"77-83"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.6058/JLC.2012.11.2.77","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71162061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}