• Asian Pacific Journal of Cancer Prevention
• /
• 제16권9호
• /
• pp.3857-3860
• /
• 2015

Background: Recent studies revealed a relationship between ground-glass opacity (GGO) ratio on computed tomography (CT) and serum carcinoembryonic antigen (CEA) level in lung adenocarcinoma. Since an association between lepidic histologic pattern and GGO is well accepted, we investigated the link between histologic subtype and serum CEA level in resected lung adenocarcinoma. Materials and Methods: One hundred and eighty-one consecutive patients with resected lung adenocarcinoma were studied retrospectively. The histologic subtype was subdivided into 2 groups: lepidic dominant histologic subtype, including adenocarcinoma in situ, minimally invasive adenocarcinoma and lepidic predominant invasive adenocarcinoma versus other subtypes. Results: The 5-year survival of patients with s high serum CEA level was significantly more unfavorable than that with normal levels. Similarly, there was also a relationship between the patient survival and histologic subtype, with favorable survival found in patients with the lepidic dominant histologic subtype. There was a significant relationship between serum CEA level and lepidic dominant histologic subtype overall and in p-stage I patients. Conclusions: Lung adenocarcinomas with non-lepidic dominant histologic subtype are associated with high serum CEA levels.

• Tuberculosis and Respiratory Diseases
• /
• 제75권5호
• /
• pp.181-187
• /
• 2013

The emergence of new therapeutic agents for non-small cell lung cancer (NSCLC) implies that histologic subtyping and molecular predictive testing are now essential for therapeutic decisions. Histologic subtype predicts the efficacy and toxicity of some treatment agents, as do genetic alterations, which can be important predictive factors in treatment selection. Molecular markers, such as epidermal growth factor receptor (EGFR) mutation and anaplastic lymphoma kinase (ALK) rearrangement, are the best predictors of response to specific tyrosine kinase inhibitor treatment agents. As the majority of patients with NSCLC present with unresectable disease, it is therefore crucial to optimize the use of tissue samples for diagnostic and predictive examinations, particularly for small biopsy and cytology specimens. Therefore, each institution needs to develop a diagnostic approach requiring close communication between the pulmonologist, radiologist, pathologist, and oncologist in order to preserve sufficient biopsy materials for molecular analysis as well as to ensure rapid diagnosis. Currently, personalized medicine in NSCLC is based on the histologic subtype and molecular status. This review summarizes strategies for tissue acquisition, histologic subtyping and molecular analysis for predictive testing in NSCLC.

• 대한세포병리학회지
• /
• 제15권1호
• /
• pp.40-44
• /
• 2004

To evaluate the quality of fine needle aspiration cytology diagnosis on malignant salivary gland neoplasms, cytologic findings were correlated with histologic diagnosis of 56 surgically removed malignant salivary gland tumors. Seven cases (12.5%) were insufficient, 23 cases (41.1%) were diagnosed as malignant, 17 (30.4%) cases were accurately diagnosed by histologic subtype, and 9 cases (16%) were diagnosed as benign. Five out of 9 false negative cases were misdiagnosed as pleomorphic adenomas. Except the cases with insufficient specimen, overall sensitivity was 81.6%, and the sensitivity varied according to the histologic subtype; 91% in salivary duct carcinoma, 100% in carcinoma ex pleomorphic adenoma, 50% in mucoepidermoid carcinoma, 63% in adenoid cystic carcinoma, and 50% in acinic cell carcinoma. The diagnostic accuracy differed among cytopathologists irrespective of periods after acquisition of board of pathologists. These results confirm that salivary gland neoplasm can be easily misdiagnosed in fine needle aspiration cytology and a great caution should be given in diagnosing the benign appearing salivary aspirates to avoid under-diagnosis of malignant neoplasm with low grade cytologic atypia.

• Tuberculosis and Respiratory Diseases
• /
• 제70권4호
• /
• pp.330-337
• /
• 2011

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. 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. Conclusion: 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.

• Journal of Chest Surgery
• /
• 제28권11호
• /
• pp.1075-1078
• /
• 1995

The desmoid tumor has been reported as the most common histologic subtype of soft tissue sarcoma occuring in chest wall and it known to be highly recurrent. The treatment of choice is a radical wide resection including a safe margin of uninvolved structures around the grossly visible tumor. We report a case of chest wall reconstruction using Marlex sandwich and latissimus dorsi musculocutaneous flap after wide resection of desmoid tumor on the chest wall.

• 대한두경부종양학회지
• /
• 제18권2호
• /
• pp.157-162
• /
• 2002

Background and Objectives: Adenoid cystic carcinoma (ACC) is a unique tumor characterized by frequent and delayed distant metastasis (DM) with uncommon regional lymph node metastasis. We evaluated the factors affecting DM of ACC and survival after appearance of DM. Materials and Methods: Medical records, radiographs and pathologic slides were reviewed for 94 patients from 1979 through 2001. Results: DM of ACC occurred in 46 patients, and developed more frequently in patients with tumors of the solid histologic subtype than in patients with tubular or cribriform subtypes. DM occurred less frequently in the sinonasal tract, and development of DM was not affected by tumor stage. Disease-specific 5- and 10-year survival rates were 88% and 72% for patients without DM, respectively and 76% and 48% for those with DM(p=0.02). Regarding the site of DM and its impact on outcomes, 30 patients had lung metastasis alone, 5 patients bone metastasis alone and 6 patients developed both lung and bone metastasis. Median survivals after appearance of DM among patients with isolated lung metastases and those with bone metastases with or without lung involvement were 54 and 21 months, respectively (p=0.04). Conclusions: Development of DM in ACC is predicted by solid histologic subtype, and major salivary gland or oral/pharyngeal rather than sinonasal primary site. Those patients with bone involvement with our without lung metastases had worse outcomes than those with pulmonary metastasis only.

• Asian Pacific Journal of Cancer Prevention
• /
• 제15권24호
• /
• pp.10627-10630
• /
• 2015

Background: Epidermal growth factor receptor (EGFR) mutations play a vital role in the prognosis of patients with lung adenocarcinoma. Such somatic mutations are more common in women who are non-smokers with adenocarcinoma and are of Asian origin. However, to our knowledge, there are few studies that have focused on men. Materials and Methods: One hundred and eighty-four consecutive patients (90 men and 94 women) of resected lung adenocarcinoma were studied retrospectively. Results: EGFR mutations were positive in 48.9% and negative (wild type) in 51.1%. Overall mutation was significant in women (66.0% vs. 32.2%) compared with men (p<0.001). For overall patients, EGFR mutation status was associated with gender, pStage, pT status, lepidic dominant histologic subtype, pure or mixed ground-glass nodule type on computed tomography and smoking status. However, in men, EGFR mutation status was only associated with lepidic dominant histologic subtype and not the other variables. Interestingly, the Brinkman index of men with mutant EGFR also did not differ from that for the wild type ($680.0{\pm}619.3$ vs. $813.1{\pm}552.1$ p=0.1077). Conclusions: The clinical characteristics of men with lung adenocarcinoma related to EGFR mutation are not always similar to that of overall patients. Especially we failed to find the relationship between EGFR mutations and smoking status in men.

• Journal of Chest Surgery
• /
• 제37권8호
• /
• pp.684-690
• /
• 2004

배경: 원발성 흉선상피세포종(primary thymic epithelial neoplasm)은 다양한 생물학적 및 형태학적인 특성을 가진 종격동 종양이다. 이 연구에서는 59예의 흉선종 환자를 새로운 WHO분류에 따라 재분류하고, Masaoka 임상적 병기를 비롯한 여러 가지 임상적인 특성을 분석함으로써 예후에 영향을 미치는 인자를 알아보고 WHO 분류가 독립적인 예후인자가 될 수 있는지를 알아보고자 했다. 대상 및 방법: 1986년 12월부터 2003년 8월까지 계명대학교 동산의료원에서 흉선종으로 진단 받은 후 수술적 치료를 받은 59예를 대상으로 생존율에 영향을 미치는 예후인자를 흉선종의 조직학적 분류(WHO classification)와 임상적 병기(Masaoka's clinical stage) 및 환자의 특성(성별, 나이, 중증근무력증 유무, 종괴의 크기, 종괴의 침습 유무, 재발, 전이)에 따라 분석하였다. 그리고 조직학적 분류와 임상적 병기사이의 연관성을 분석하였다. 결과: 남자는 32예, 여자는 27예였으며 평균연령은 50.1$\pm$14.2세였다. 모든 흉선종은 WHO 분류에 따라 A부터 C까지 재분류하였다. WHO 분류에 따라 Type A는 6명(10.2%)이었고 AB는 7명(11.9%), B$_1$은 7명(11.9%), B$_2$는 10명(16.9%), B$_3$는 7명(11.9%), C는 22명(37.3%)으로 나타났다. 여러 가지 임상적 특성 가운데 다변수 분석을 통해 완전절제(p=0.033)와 주변조직으로의 저침습성(p=0.001)이 좋은 예후와 연관이 있는 것으로 나타났다. 전체 흉선종의 5년 생존율은 53%였으며 WHO 분류에 따른 5년 생존율은 Type A+AB가 92.3%, B$_1$+B$_2$가 70.2%, B$_3$+C가 26.1%로 나타났다. WHO 조직학적 분류와 생존율 사이의 상관관계분석에서 WHO 조직학적 분류는 예후와 통제적으로 유의하게 연관성이 있는 것으로 나타났다(p<0.001). WHO 분류에 따른 Masaoka 임상병기 분석에서도 두 변수가 통계적으로 유의하게 연관성을 가지는 것으로 나타났다(p<0.001). 결론: WHO 분류는 단순한 조직학적인 분류일 뿐만 아니라 흉선종의 생존율에 중요한 영향을 미치며 종양의 침습성을 잘 반영하는 예후인자임을 알 수 있었다.

• Asian Pacific Journal of Cancer Prevention
• /
• 제16권14호
• /
• pp.5899-5902
• /
• 2015

Background: To compare the current histologic distribution of lung cancer in Lebanon to the worldwide trends, according to the 2004 WHO Classification. Materials and Methods: 1,760 patients with a pulmonary pathology examination at Hotel-Dieu de France University Hospital between July 2009 and July 2014 were included. Results: Some 676 out of the total investigated patients (38.4%) had a lung tumor. In 665 (98.4%) the tumors were malignant, with a mean age at diagnosis of 63.8 years and a male/female (M/F) sex ratio of 1.7:1. Among the malignant tumors, 86.2% were epithelial tumors with a mean age at diagnosis of 64.8 years and an M/F sex ratio of 1.9. Other malignant tumors consisted of metastatic tumors (10.2%), lymphoproliferative tumors (2.1%) and mesenchymal tumors (1.5%). Most common carcinoma subtypes were adenocarcinoma (48.0%), squamous cell carcinoma (23.0%) and small cell carcinoma (13.3%). Carcinoid tumors were the only carcinoma subtype with an M/F sex ratio below 1 (0.7). Salivary gland tumors were the carcinoma with lowest mean age at diagnosis (45.5 years). Conclusions: The histologic distribution of lung tumors in Lebanon is similar to that in developed countries. We believe this resemblance is due to common smoking habits, known to be responsible for the increase of lung adenocarcinoma at the expense of other subtypes.

• Journal of Chest Surgery
• /
• 제52권5호
• /
• pp.342-352
• /
• 2019

Background: Smokers with lung adenocarcinoma have a worse prognosis than those who have never smoked; the reasons for this are unclear. We aimed to elucidate the impact of smoking on patients' prognosis and the association between smoking and clinicopathologic factors, particularly histologic subtypes. Methods: We reviewed the records of 233 patients with pathologic stage T1-4N0-2M0 lung adenocarcinomas who underwent surgery between January 2004 and July 2015. The histologic subtypes of tumors were reassessed according to the 2015 World Health Organization classification. Results: In total, 114 patients had a history of smoking. The overall survival probabilities differed between never-smokers and ever-smokers (80.8% and 65.1%, respectively; p=0.003). In multivariate analyses, the predominant histologic subtype was an independent poor prognostic factor. Smoking history and tumor size >3 cm were independent predictors of solid or micropapillary (SOL/MIP)-predominance in the logistic regression analysis. Smoking quantity (pack-years) in patients with SOL/MIP-predominant tumors was greater than in those with lepidic-predominant tumors (p=0.000). However, there was no significant difference in smoking quantity between patients with SOL/MIP-predominant tumors and those whose tumors had non-predominant SOL/MIP components (p=0.150). Conclusion: Smoking was found to be closely associated with SOL/MIP-predominance in lung adenocarcinoma. Greater smoking quantity was related to the presence of a SOL/MIP component.