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Original Article
- Prognostic Factors of Gastrointestinal Leiomyosarcoma in Korea
- Se Hoon Lee, Hee Jeoung Cha, Jee Hyun Kim, Im Il Na, Jun Hee Lee, Hark Kyun Kim, Keun Seok Lee, Won Sup Lee, Chong Jai Kim, Dae Seog Heo, Yung Jue Bang, Noe Kyeong Kim
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Journal of the Korean Cancer Association 2000;32(6): 1022-1030.
1Departments of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea. heo1013@plaza.snu.ac.kr
2Departments of Pathology, Seoul National University College of Medicine, Seoul, Korea.
2Departments of Pathology, Seoul National University College of Medicine, Seoul, Korea.
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Abstract
PURPOSE
The clinicopathologic features and prognostic factors of gastrointestinal leiomyosarcoma have been a source of controversy.
MATERIALS AND METHODS
A retrospective study was made of 91 incident cases of gastrointestinal leiomyosarcoma from 1979 to 1998 to identify clinicopathologic features and prognostic factors.
RESULTS
The median age of study subjects was 56 years and 58.2% was male. Tumors consisted of 2 esophagus, 39 stomach, 38 small bowel, 12 large bowel leiomyosarcoma. Mean size of the tumors was 10.9 cm and 52.9% of them was larger than 10 cm.
The tumors were classified as localized stage (42 cases), advanced stage (21 cases), and metastatic stage (28 cases). Again, the tumors were classified as low grade (48 cases) and high grade (18 cases). Median overall survival was 37.4 months and median disease-free survival was 28.2 months. In univariate analysis, the significant factors affecting the overall survival of patients with leiomyosarcoma were stage, size greater than 10 cm, performance status, and histologic grade. In multivariate analysis, stage, performance status, and histologic grade were independent factors affecting the overall survival. In univariate analysis, the significant factors affecting the disease-free survival were stage, performance status, and histologic grade. In multivariate analysis, histologic grade was the only independent factor affecting the disease-free survival.
CONCLUSION
Stage, performance status, and histologic grade were independent factors affecting the overall survival. Histologic grade was independent factor affecting the disease-free survival.
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