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[Gastric cancer 650 - Residual cancer in surgery for noncurated ESD]

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The rate of pathological non-curative resection of EGC by ESD is about 10-20%. In additional surgery for non-curative resection cases, local residual tumor is found in 5-10%, and lymph node metastasis is also found in 5-10%. In this case of histological heterogeneity, lateral margin was involved. Surgery was done and 1.2cm x 0.3cm sized residual tumor in lamina propria was found.


ESD: Early gastric carcinoma
1. Location : angle, anterior wall
2. Gross type : EGC type IIa+IIc
3. Histologic type : tubular adenocarcinoma, well differentiated (WHYX type) >> tubular adenocarcinoma, poorly differentiated (10%) > signet ring cell carcinoma (10%)
4. Histologic type by Lauren : mixed
5. Size of carcinoma : (1) longest diameter, 28 mm (2) vertical diameter, 26 mm
6. Depth of invasion : invades mucosa (lamina propria) (pT1a)
7. Resection margin : involvement of proximal margin by carcinoma (poorly differentiated) safety margin : distal 6 mm, proximal 0 mm, anterior 8 mm, posterior 6 mm, deep 1000 §­
8. Lymphatic invasion : not identified(N)
9. Venous invasion : not identified(N)
10. Perineural invasion : not identified(N)
11. Microscopic ulcer : absent
12. Histologic heterogeneity: present

Resectio margin positive¿¡¼­ ESD³ª ablationÀ» Ãß°¡Çϱ⵵ ÇÏ°í ¼ö¼úÀ» ±ÇÇÒ ¼öµµ ÀÖ½À´Ï´Ù. °æ°è°¡ ºÒºÐ¸íÇÑ ºÎÀ§¿´°í, resection margin ºÎÀ§°¡ poorly differentiated component¿´À¸¹Ç·Î ¼ö¼úÀ» ±ÇÇß½À´Ï´Ù.

Stomach, subtotal gastrectomy: Status post ESD, Early gastric carcinoma, residual;
1. Location : lower third, Center at angle and anterior wall
2. Gross type : EGC type (unspecified)
3. Histologic type : tubular adenocarcinoma, well differentiated
4. Histologic type by Lauren : intestinal
5. Size : 1.2x0.3 cm
6. Depth of invasion : invades mucosa (lamina propria) (pT1a)
7. Resection margin: free from carcinoma, safety margin: proximal 4.0 cm, distal 7.2 cm
8. Lymph node metastasis : no metastasis in 21 regional lymph nodes (pN0)
9. Lymphatic invasion : not identified
10. Venous invasion : not identified
11. Perineural invasion : not identified
12. AJCC stage by 8th edition (ESD+resection) : pT1a N0


[FAQ]

[2018-7-28. ¾Öµ¶ÀÚ Áú¹®]

¹ÌºÐÈ­ È¥Àç¾Ï ESD ÈÄ ÀýÁ¦º¯¿¬ ¾ç¼ºÀ¸·Î ¼ö¼úÀ» ±ÇÇÑ Áõ·Ê(EndoTODAY À§¾Ï 650)¿¡ ´ëÇÑ Áú¹®ÀÔ´Ï´Ù. Mixed type ÀÇ °æ¿ì ¾Ç¼ºÀÇ °¡´É¼ºÀÌ ´õ ³ô´Ù°í ÇϽŠ¹Ù ÀÖ½À´Ï´Ù (Shim CN. Surg Endosc 2015). ÀÏÀü¿¡ º¸¿©ÁֽŠȯÀÚ¼³¸íÀÚ·á(EndoTODAY À§¾Ï 615)¿¡¼­´Â 'ÃÖ±Ù¿¡´Â È¥ÀçÇü¿¡¼­µµ ESD¸¦ ÇÒ ¼ö ÀÖ´Ù'°í Çϼ̱⿡ Á¶±Ý È¥¶õ½º·´½À´Ï´Ù.

[2018-7-28. ÀÌÁØÇà ´äº¯]

À§¾ÏÀ» Á¶Á÷Çü¿¡ µû¶ó ºÐÈ­Çü°ú ¹ÌºÐÈ­ÇüÀ¸·Î ³ª´©´Â °ÍÀº ¾ö¹ÐÇÑ ¹æ¹ýÀº ¾Æ´ÏÁö¸¸, Æí¸®ÇÑ Ãø¸éÀÌ À־ ESD ¿µ¿ª¿¡¼­ Á¾Á¾ »ç¿ëµÇ°í ÀÖ½À´Ï´Ù. ºÐÈ­Çü°ú ¹ÌºÐÈ­ÇüÀÌ ¼¯ÀÎ ¹ÌºÐÈ­ È¥Àç¾ÏÀº ¾ÆÁ÷ ±× Á¤ÀÇÁ¶Â÷ ¸íÈ®ÇÏÁö ¾Ê½À´Ï´Ù. Histological heterogeneity¶ó°í Ç¥ÇöµÇ±âµµ ÇÕ´Ï´Ù. °°Àº ¸»ÀÔ´Ï´Ù.

¹ÌºÐÈ­ È¥Àç¾ÏÀÌ ºÐÈ­Á¶Á÷Çüº¸´Ù ³ª»Û °ÍÀº Ʋ¸²¾ø½À´Ï´Ù. ±×·±µ¥, ¹ÌºÐÈ­ È¥Àç¾ÏÀ» ¼ø¼öÇÑ ¹ÌºÐÈ­ Á¶Á÷Çü ¾Ï°ú ºñ±³ÇÏ¸é ¾î¶³±î¿ä? Á÷°üÀûÀ¸·Î´Â ¹ÌºÐÈ­ È¥ÀçÇüÀº ºÐÈ­Á¶Á÷Çü°ú ¹ÌºÐÈ­Á¶Á÷ÇüÀÇ Áß°£ Á¤µµÀÏ °Í °°Áö¸¸, ¿¬±¸ °á°ú´Â ¼¯ÀÎ °ÍÀº ¼ø¼øÇÑ °Íº¸´Ù ³ª»Ú´Ù´Â °ÍÀÔ´Ï´Ù (Shim CN. Surg Endosc 2015). Àúµµ ¹ÌºÐÈ­ È¥Àç¾ÏÀº ¼ø¼öÇÑ ¹ÌºÐÈ­ Á¶Á÷Çü (P/D ȤÀº SRC) À§¾Ïº¸´Ù ºñ½ÁÇϰųª ´õ ³ª»Ü °ÍÀ¸·Î »ý°¢ÇÏ°í ÀÖ½À´Ï´Ù.

³»½Ã°æ À°¾È ¼Ò°ßÀÌ ºÐÈ­Á¶Á÷Çü À§¾Ï¿¡ °¡±î¿îµ¥ Á¶Á÷°Ë»ç¿¡¼­ mixed typeÀ¸·Î ³ª¿À¸é Á¶½É½º·´°Ô ESD¸¦ ½ÃÇàÇÒ ¼ö ÀÖ½À´Ï´Ù. ¹°·Ð Å©±â ±âÁØÀ» ¾ö°ÝÇÏ°Ô Àû¿ëÇÕ´Ï´Ù. 1-2cm À̻󿡼­´Â Àý´ë ½ÃÇàÇÏÁö ¾Ê´Â °ÍÀÌÁö¿ä.

ÀÓ»ó¿¡¼­´Â ESD Àü Á¶Á÷°Ë»ç¿¡¼­´Â ºÐÈ­Á¶Á÷Çü À§¾ÏÀ¸·Î ³ª¿Ô´Âµ¥ ESD ÈÄ ÃÖÁ¾ º´¸®°á°ú°¡ ¹ÌºÐÈ­ È¥ÀçÇüÀ¸·Î ³ª¿Â °æ¿ì°¡ ¸¹½À´Ï´Ù.

(1) ¹ÌºÐÈ­ È¥Àç¾ÏÀÌ´õ¶óµµ Á¡¸·¾ÏÀÌ°í ÀýÁ¦ º¯¿¬ÀÌ À½¼ºÀÌ¸é ¿ÏÀüÀýÁ¦·Î °£ÁÖÇÏ°í °æ°ú°üÂûÀ» ÇÕ´Ï´Ù.

(2) ¹ÌºÐÈ­ È¥Àç¾ÏÀÌ°í Á¡¸·ÇϾÏÀÌ¸é ¼ö¼úÇÏ´Â °æ¿ì°¡ ¸¹½À´Ï´Ù. ÀÌ ºÎºÐÀº ´Ù¼Ò ³í¶õÀÌ ÀÖ¾î case by case·Î Á¢±ÙÇÕ´Ï´Ù. ÀϹÝÀûÀÎ curative resection criteria¿¡ ¸¸Á·ÇÏ¸é °æ°ú°üÂûÀ» Çϱ⵵ ÇÕ´Ï´Ù.

Min. 2015

(3) ¹®Á¦´Â ¹ÌºÐÈ­ È¥Àç¾ÏÀÌ°í ÀýÁ¦ º¯¿¬ÀÌ ¾ç¼ºÀÎ °æ¿ìÀÔ´Ï´Ù. ºÐÈ­Á¶Á÷Çü À§¾Ï¿¡ ÀýÁ¦º¯¿¬ÀÌ ¾ç¼ºÀ̸é Ãß°¡ ÀýÁ¦¼úÀ» Çϰųª, ¼ÒÀÛ¼úÀ» Çϰųª, Á¶½É½º·´°Ô °æ°ú°üÂûÀ» ÇÒ ¼ö ÀÖ½À´Ï´Ù. ¹ÌºÐÈ­ È¥Àç¾Ï¿¡¼­ ÀýÁ¦ º¯¿¬ÀÌ ¾ç¼ºÀ̸é residual tumorÀÇ °¡´É¼ºÀÌ ³ô½À´Ï´Ù. ¹ÌºÐÈ­ È¥Àç¾ÏÀº ³»½Ã°æ À°¾È¼Ò°ßÀ¸·Î À§¾ÏÀÇ °æ°è¸¦ ¸íÈ®È÷ È®ÀÎÇϱ⠾î·Æ°í, ESD ÈÄ multiple lateral margin involvement°¡ ÀÚÁÖ ¹ß°ßµË´Ï´Ù (Lee JH. Surg Endosc 2015). Àú´Â ¹ÌºÐÈ­ È¥Àç¾ÏÀε¥ ÀýÁ¦º¯¿¬ÀÌ ¾ç¼ºÀ̸é, ƯÈ÷ ¹ÌºÐÈ­¾ÏÀÌ ÀýÁ¦º¯¿¬¿¡¼­ ¹ß°ßµÇ¸é ¼ö¼úÀ» ±ÇÇÏ°í ÀÖ½À´Ï´Ù. ¹®ÀÇÇϽŠEndoTODA À§¾Ï 650ÀÇ º´¸®°á°ú¸¦ º¸¸é "involvement of proximal margin by carcinoma (poorly differentiated)"¶ó´Â ºÎºÐÀÌ ÀÖ¾ú½À´Ï´Ù. ¼ö¼ú ÈÄ ÃÖÁ¾ º´¸®¿¡¼­µµ residual tumor°¡ ÀÖ´Â °ÍÀ¸·Î ³ª¿Í¼­ ¼ö¼úÀ» ±ÇÇϱæ Àß Çß´Ù°í »ý°¢ÇÏ¿´½À´Ï´Ù.

Lee. 2015

Àú¿Í ÇÔ²² ÀÏÇÏ°í ÀÖ´Â ¹Îº´ÈÆ ±³¼ö²²¼­ »ï¼º¼­¿ïº´¿øÀÇ ¹ÌºÐÈ­ È¥Àç¾Ï ESD ¼ºÀû¿¡ ´ëÇÏ¿© º¸°íÇÑ ¹Ù ÀÖÀ¸´Ï Âü°íÇϽñ⠹ٶø´Ï´Ù (Min BH. Gastric Cancer 2015).

Min. 2015

Min. 2015

Min. 2015

En bloc resection and en bloc with R0 resection rates in MUC-EGC cases were 94.1 % and 81.7 %, respectively. MUC-EGC was significantly associated with larger tumor size, more frequent submucosal invasion, and lymphovascular invasion compared to PuD-EGC. Despite these aggressive features of MUC-EGC, no lymph node metastasis or extragastric recurrence occurred during follow-up after ESD if MUC-EGC met the curative endoscopic resection (ER) criteria for tumors of absolute or expanded indications.


[References]

1) EndoTODAY ¹ÌºÐÈ­ È¥Àç¾Ï

2) EndoTODAY ÀýÁ¦ º¯¿¬ ¾ç¼º

© ÀÏ¿ø³»½Ã°æ±³½Ç ¹Ù¸¥³»½Ã°æ¿¬±¸¼Ò ÀÌÁØÇà. EndoTODAY Endoscopy Learning Center. Lee Jun Haeng. (2018-7-26)