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JYMS : Journal of Yeungnam Medical Science

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1 "pT2a(mp), pT2b(ss), N stage, Gastric cancer"
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Original Article
Surgery
The Clinical Relevance of Distinguishing pT2 Gastric Cancer According to the Depth of Invasion and a Difference of Prognosis
Se Won Kim, Sun Kyo Song, Sang Woon Kim
Yeungnam Univ J Med. 2007;24(2 Suppl):S416-423.   Published online December 31, 2007
DOI: https://doi.org/10.12701/yujm.2007.24.2S.S416
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AbstractAbstract PDF
Purpose：A difference of a pathologic characteristic in proportion to depth of invasion analyzed in T2 gastric cancer and a difference of depth of invasion examined an influence to lymph node metastasis and prognosis. Materials and Methods：The clinicopathologic outcomes of 432 patients who underwent curative resection for pT2 stage gastric cancers from 1995 to 1999 were reviewed retrospectively. We are compared on lymphatic metastasis, stage distribution, histologic classification, Bormann’s classification, Lauren classification, vessel invasion, lymphatic invasion, neural invasion and 5-year survival rate of pT2 groups(mp vs. ss).
Results
：pT2b(ss) group compare to pT2a(mp) in Lauren classification, ratio of diffused type was higher(p<0.05) and in Bormann classification, infiltration type was higher (p<0.01). Vessel and lymphatic invasion, neural invasion showed significant difference between pT2a(mp) and pT2b(ss) (p<0.01). Difference noted between pT2a(mp) and pT2b(ss) group in a lymph node metastatic rate, degree of a metastasis and stage distribution (p<0.01). On stratifying patients according to depth of invasion, 5-year suvival rate for those with pT2a(mp) group was significantly greater than those with pT2b(ss) group(82.4% vs. 47.4%, respectively: P<0.01). In this study, appeared with the significant prognostic factor in 5-year suvival rate which multivariate analysis, depth of invasion(P<0.05) and lymph node metastasis (P<0.01) that enforced the total gastric cancer patient who had T2 gastric cancer with the object noted, but for patients with accurately staged pN0 group, suvival characteristics were similar for pT2a (mp) and pT2b(ss) gastric cancer (P=0.97).
Conclusion
：The subclassification of pT2 gastric cancer into pT2a(mp) and pT2b(ss) is necessary to demonstrate their different prognosis.

Citations

Citations to this article as recorded by  
  • The Analysis of Clinical Characteristics of pT2a and pT2b Gastric Cancer
    Byoung Hyun Choi, Ji Hoon Kim, Jin Ho Kwak, Hyuck Jae Jang, Myung Sik Han
    Journal of the Korean Surgical Society.2009; 77(4): 257.     CrossRef
JYMS : Journal of Yeungnam Medical Science
© Yeungnam University College of Medicine, Yeungnam University Institute of Medical Science.
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