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[Gastric cancer 453 - 10cm°¡ ³Ñ´Â Á¡¸·¾Ï]

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À§ÀüÁ¤ºÎ ¼Ò¸¸ÀÇ Á¶±âÀ§¾ÏÀ¸·Î ESD ½ÃÇà ÈÄ ¹ÌºÐÈ­À§¾Ï(PD 65% + SRC 35%)ÀÌ°í lateral margin positive (4°÷ Áß 3°÷)·Î ³ª¿Í ÀÇ·ÚµÈ È¯ÀÚÀÔ´Ï´Ù. ù Á¶Á÷°Ë»çÀÇ °á°ú°¡ ¹«¾ùÀ̾ú´ÂÁö´Â ¾Ë ¼ö ¾ø¾ú½À´Ï´Ù. ¼ö¼ú(subtotal gastrectomy ÈÄ resection margin positive·Î total gastrectomy)À» ½ÃÇàÇÏ¿´½À´Ï´Ù. 10cm ÀÌ»óÀÇ Á¡¸·¾Ï(EGC IIb, muscularis mucosae±îÁö ħÀ±, ù ¼ö¼úÀÇ º´¼Ò Å©±â´Â 12cm, µÎ¹ø° ¼ö¼úÀÇ º´¼Ò Å©±â´Â 3 cm)À̾ú°í ¸²ÇÁÀý ÀüÀÌ´Â ¾ø¾ú½À´Ï´Ù.

Learning point (1) : ¹ÌºÐÈ­Çü À§¾ÏÀÇ °æ°èÆÇÁ¤Àº ¸Å¿ì ¾î·Æ½À´Ï´Ù.

Learning point (2): °£È¤ 10cm°¡ ³Ñ´Â Á¶±âÀ§¾Ï (Á¡¸·¾Ï)µµ ÀÖ½À´Ï´Ù.

Learning point (3): ESD ÈÄ multiple lateral margin positive´Â Á¶Á÷ÇüÀÌ ¹ÌºÐÈ­ È¥ÀçÇüÀ̰ųª ¹º°¡ ƯÀÌÇÑ °æ¿ì°¡ ¸¹½À´Ï´Ù. ÀÌ À̽´¿¡ ´ëÇؼ­´Â ÀÏÀü¿¡ ÀúÈñ ÆÀ¿¡¼­ ³í¹®À¸·Î ¹ßÇ¥ÇÑ ¹Ù ÀÖ½À´Ï´Ù. (Lee JH. Surg Endosc 2015). ¸¹Àº ¼ö°í¸¦ ÇØ ÁֽŠÀÌÁØÈñ ¼±»ý´Ô²² °¨»çµå¸³´Ï´Ù. Á¦1 ÀúÀÚ¿Í(ÀÌÁØÈñ, Lee JH) ±³½ÅÀúÀÚ(ÀÌÁØÇà, Lee JH)ÀÇ initialÀÌ °°Àº µå¹® °æ¿ìÀÔ´Ï´Ù.^^

In our institution, lateral margin involvement is evaluated and reported in 4 directions. In about 14 hundred early gastric cancers treated by ESD, lateral margin involvement was documented in 5.5%. Among them, 60% were single lateral margin positive. 40% were multiple lateral margin positive.

Histologic heterogeneity was seen in 25% and 46%, respectively. Extremely well differentiated adenocarcinoma was 7% and 25% in the two groups. This difference was statistically significant. Cases of technical difficulty was the same in the two groups. Surprisingly, the procedure time was shorter in the multiple lateral margin positive group. We thought that the technical aspect was not related to the number of positive lateral margin.

In this figure, yellow bar is the proportion of the cases with HH or EWDA. It showed that the ratio of HH or EWDA is increasing according to the number of lateral margin positive direction. And the difference was statistically significant.

°á±¹ histologic heterogeneity (EndoTODAY 20121122) ȤÀº EWDA (extremely well differentiated adenocarcinoma) (EndoTODAY 20121123)¿¡¼­ multiple lateral margin involvement°¡ ¸¹¾Ò´Ù´Â °ÍÀÔ´Ï´Ù. °¡º­¿î ¸¶À½À¸·Î ¾ÆÁÖ ½±°Ô ESD¸¦ ÇÑ ÈÄ multiple lateral marginÀÌ ³ª¿À´Â °ÍÀε¥ Àӻ󰡷μ­´Â »ó´çÈ÷ ´çȲ½º·¯¿î ÀÏÀÔ´Ï´Ù. »ç½Ç À̹ø Áõ·Ê¿Í´Â µü ¸Â´Â ¿¬±¸ °á°ú´Â ¾Æ´Õ´Ï´Ù. À̹ø Áõ·Ê´Â óÀ½ºÎÅÍ Á¶Á÷°Ë»ç¿¡¼­ undifferentiated type histology¿´À» °¡´É¼ºµµ Àֱ⠶§¹®ÀÔ´Ï´Ù. ¿©ÇÏÆ° multiple lateral margin positive´Â ESDÀÇ ±â¼úÀûÀÎ À̽´°¡ ¾Æ´Ï°í Áúº´ ÀÚü°¡ ¹º°¡ ƯÀÌÇÑ °æ¿ì¶ó´Â Á¡À» ¸»¾¸µå¸³´Ï´Ù.

* Âü°í: EndoTODAY ÀýÁ¦º¯¿¬¾ç¼º

© ÀÏ¿ø³»½Ã°æ±³½Ç ¹Ù¸¥³»½Ã°æ¿¬±¸¼Ò ÀÌÁØÇà. EndoTODAY Endoscopy Learning Center. Lee Jun Haeng.