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Clinical Characteristics of Pleomorphic Carcinoma  

Lee, Deok-Heon (Dept. of Thoracic and Cardiovascular Surgery, Keimyung University School of Medicine)
Park, Hoon (Dept. of Thoracic and Cardiovascular Surgery, Keimyung University School of Medicine)
Park, Chang-Kwon (Dept. of Thoracic and Cardiovascular Surgery, Keimyung University School of Medicine)
Kwon, Kun-Young (Dept. of Pathology, Keimyung University School of Medicine)
Park, Nam-Hee (Dept. of Thoracic and Cardiovascular Surgery, Keimyung University School of Medicine)
Choi, Sae-Young (Dept. of Thoracic and Cardiovascular Surgery, Keimyung University School of Medicine)
Lee, Kwang-Sook (Dept. of Thoracic and Cardiovascular Surgery, Keimyung University School of Medicine)
Yoo, Young-Sun (Dept. of Thoracic and Cardiovascular Surgery, Keimyung University School of Medicine)
Publication Information
Journal of Chest Surgery / v.36, no.6, 2003 , pp. 397-403 More about this Journal
Abstract
Background: The research sought to identify the clinical features of pleomorphic carcinoma of the lung generally known as a rare subtype in accordance with the lung cancer classification done in 1999 by WHO. Material and Method: 250 cases of surgically resected lung cancers were collected in this hospital from January 1992 to December 2001. This study included 42 cases of pleomorphic carcinoma diagnosed through light microscope and immunohistochemistry. Result: Out of 42 cases, males represented 31, and females 11, the age ranged from 26 to 77. Main clinical symptoms included coughing, hemoptysis, sputum. Diagnoses disclosed the stage as stage la in 3 cases (7%), Ib in 16 (38%), IIa in 1 (2%), IIb in 8 (19%), IIIa in 15 (35%), and IIIb in 1 (2%). Out of these, no lymph node metastasis was represented in 23 cases (54%), while N1 and N2 involving lymph node metastasis was shown 19 cases (46%). A total of 19 patients developed metastasis, comprising the brain in 5 cases (26%), bone in 4 (21%), muscle in 4 (21%), Lymph node in 2 (10%), and 1 liver, ovary, contralateral lung, and adrenal gland, respectively. The size of the tumor ranged from 1 cm to 11 cm, averaging 5.85 cm. Out of the 42 patients, the total two-year and five-year survival rates in accordance with the Kaplan-Meier method represented 26% and 13%, respectively, These figures compared to the corresponding 44% and 34% in cases other than pleomorphic carcinoma from the survey target of 256 cases, proved to be significantly low (p<0.002). No significant difference was found in the survival rates compared between age and tumor size, between stage I and above stage II, and between N0 and above N1. Patients who developed postoperative metastasis all died, and showed significantly low survival rates (p<0.002) compared to those patients without metastasis. Conclusion: With the new diagnosis method of f999 WHO's lung cancer classification applied, pleomorphic carcinoma showed a higher prevalence rate than under previous classifications, their postoperative survival rate was significantly low compared to histologic type of non small cell lung carcinomas.
Keywords
Lung neoplasm; Carcinoma, lung; Prevalence;
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