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KMID : 0914820060060020084
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Journal of the Korean Gastric Cancer Association
2006 Volume.6 No. 2 p.84 ~ p.90
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Macroscopic Serosal Invasion in Advanced Gastric Cancer
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Yoon Woo-Sung
Yu Wan-Sik
Kim Tae-Bong
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Abstract
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Purpose: The macroscopic findings of tumors are not always identical with the microscopic findings. This study investigated the oncologic implications of macroscopic serosal invasion in advanced gastric cancer to find out how to improve the accuracy for the depth of invasion assessed by the surgeon during an operation.
Materials and Methods: The medical records of 789 patients with advanced gastric cancer who underwent a gastrectomy at Kyungpook National University Hospital between 1995 and 1999 were reviewed. The prognoses and the recurrence patterns were analyzed according to macroscopic serosal invasion and microscopic serosal invasion, and the clinico-pathological factors of cT3/ss cancers were compared with those of cT3/se cancers.
Results: Difference of survival rates according to macroscopic serosal invasion and microscopic serosal invasion revealed statistically significant. Recurrence rates were similar in patients with macroscopic and microscopic serosal invasion (42.2% and 41.4%, respectively). Peritoneal recurrence rates were also similar (19.8% and 21.9%, respectively). The sensitivity and the specificity of macroscopic assessment of serosal invasion were 70.3% and 77.8%, respectively. On univariate and multivariate analyses, Borrmann type I/II cancers and the absence of distant metastases revealed the risk factors for overestimating of serosal invasion.
Conclusion: Macroscopic serosal invasion assessed by a surgeon intraoperatively can be used to give a prognosis and to predict the recurrence pattern precisely, although there is a risk for overestimation when the tumor is a Borrmann type I/II cancer or the tumor has no distant metastases. (J Korean Gastric Cancer Assoc 2006;6:84-90)
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KEYWORD
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Advanced gastric cancer, Macroscopic serosal invasion, Prognosis, Peritoneal recurrence
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