Document Detail

Expression of carcinoembryonic antigen in peripheral- or central-located small cell lung cancer: its clinical significance.
MedLine Citation:
PMID:  11518742     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Small cell lung cancer (SCLC) has a higher percentage of hilar masses than other histological types of lung cancer. The primary site is usually adjacent to the hilum, but we often observe primary sites in the peripheral lung field. In this study, our objectives were to elucidate whether peripheral-located small cell lung cancer (PSCLC) is an independent entity and whether it differs clinically from central-located small cell lung cancer (CSCLC). METHODS: We reviewed the clinical and pathological features of 52 patients treated at Kagawa Medical University Hospital between 1987 and 1996 with a diagnosis of SCLC. We defined CSCLC as a tumor whose primary site is located in the segmental bronchi or more proximally and PSCLC as a tumor located distal to the subsegmental bronchi. Twenty-one PSCLC patients and 31 CSCLC patients were identified. Kaplan-Meier survival curves were constructed and comparisons were made between PSCLC and CSCLC by the log-rank test. The carcinoembryonic antigen (CEA) level was also evaluated in each group. RESULTS: Although the percentage of limited disease (LD) in the patients with PSCLC was higher than that in the patients with CSCLC, the 3-year survival rate of PSCLC tended to be worse than that of CSCLC (9% for patients with PSCLC and 29% for those with CSCLC). Survival curves of patients with PSCLC also tended to be worse than those of patients with CSCLC, not only in the limited disease group but also in the extensive disease (ED) group. In addition, the mean CEA value in patients with PSCLC was higher than that in patients with CSCLC (p < 0.001), whereas the neuron specific enolase (NSE) level was not significantly different between PSCLC and CSCLC. The median survival of patients with pretherapeutic CEA titers of > or =5 ng/ml was significantly shorter than that in patients with CEA levels <5 ng/ml. CONCLUSION: These findings suggest that the survival of SCLC patients with a high CEA level was significantly shorter than that of patients with a low CEA level. In addition, CEA levels in PSCLC patients were significantly higher than those in CSCLC patients. However, the survivals of LD or ED patients with PSCLC and CSCLC were not statistically different.
S Bandoh; J Fujita; Y Ueda; Y Fukunaga; K Dohmoto; S Hojo; Y Yang; Y Yamaji; J Takahara; T Ishida
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Japanese journal of clinical oncology     Volume:  31     ISSN:  0368-2811     ISO Abbreviation:  Jpn. J. Clin. Oncol.     Publication Date:  2001 Jul 
Date Detail:
Created Date:  2001-08-23     Completed Date:  2001-09-06     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0313225     Medline TA:  Jpn J Clin Oncol     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  305-10     Citation Subset:  IM    
First Department of Internal Medicine, Kagawa Medical University, Kagawa, Japan.
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MeSH Terms
Adenocarcinoma / immunology,  pathology,  surgery
Carcinoembryonic Antigen / blood*
Carcinoma, Small Cell / immunology*,  pathology,  surgery
Lung Neoplasms / immunology*,  pathology,  surgery
Middle Aged
Phosphopyruvate Hydratase / blood
Survival Analysis
Reg. No./Substance:
0/Carcinoembryonic Antigen; EC Hydratase

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