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[Thursday Endoscopy Conference 20160811]

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1. Gastric neuroendocrine tumor

Á¶Á÷°Ë»ç¿¡¼­ granular cell tumor°¡ Àǽɵȴٰí ÀǷڵǾú½À´Ï´Ù. º´¸® ½½¶óÀÌµå ¸®ºä¸¦ ÇÏ¿´´Âµ¥ neuroendocrine tumorÀÇ °¡´É¼ºÀÌ ´õ ³ô´Ù´Â ´äº¯À» ¹Þ¾Ò½À´Ï´Ù. Ç÷û gastrinÀº 778·Î ¸Å¿ì ³ô¾Ò½À´Ï´Ù. ³»½Ã°æ ÀýÁ¦¼úÀ» ÇÏ¿´°í ¾Æ·¡¿Í °°Àº °á°ú¿´½À´Ï´Ù.

Well-differentiated neuroendocrine tumor (G1)
1. Name of Procedure: ESD
2. Site of Tumor: Stomach (low body, greater curvature)
3. Diagnosis: Neuroendocrine tumor
4. WHO classification(2010): Neuroendocrine tumor(G1)
5. Multiplicity: Single
6. Size: 0.4x0.4 cm
7. Extent: Mucosa and submucosa
8. Grading: Mitotic Count: 1/5 HPFs, Ki-67 labeling index: 2 %
9. Immunohistochemical Stains: Synaptophysin : Positive, Chromogranin A: Positive
10. Lymphovascular invasion: Not identified
11. Perineural invasion: Not identified
12. Lymph node metastasis: not evaluated
13. Resection Margins: Negative


2. Ulcerative EGC (mimicking BGU)

¾ç¼º À§±Ë¾çÀÎÁö À§¾ÏÀÎÁö ±¸ºÐÀÌ ¾î·Á¿î Áõ·ÊÀÔ´Ï´Ù. Á¶Á÷°Ë»ç¿¡¼­ P/D adenocarcinoma°¡ ³ª¿Ô°í ¼ö¼úÀ» ÇÏ¿´½À´Ï´Ù.

Stomach, subtotal gastrectomy:
Early gastric carcinoma
1. Location : lower third, Center at antrum and greater curvature
2. Gross type : EGC type IIc
3. Histologic type : tubular adenocarcinoma, poorly differentiated
4. Histologic type by Lauren : diffuse
5. Size : 2.2x1.5 cm
6. Depth of invasion : invades submucosa (sm3) (pT1b)
7. Resection margin: free from carcinoma, safety margin: proximal 8.7 cm, distal 2 cm
8. Lymph node metastasis : metastasis to 1 out of 25 regional lymph nodes (pN1) - 6¹ø infra-pyloric node¿¡ ÀüÀÌ°¡ ÀÖ¾ú½À´Ï´Ù.
9. Lymphatic invasion : present
10. Venous invasion : not identified
11. Perineural invasion : not identified
12. Peritoneal cytology : negative


3. AGC at high body lesser curvature


Advanced gastric carcinoma
1. Location : upper third, Center at cardia and posterior wall
2. Gross type : Borrmann type 2
3. Histologic type : tubular adenocarcinoma, moderately differentiated
4. Histologic type by Lauren : intestinal
5. Size : 6x5.5 cm
6. Depth of invasion : invades serosa (rpT4a)
7. Resection margin: free from carcinoma, safety margin: proximal 1 cm, distal 12 cm
8. Lymph node metastasis : metastasis to 9 out of 37 regional lymph nodes (rpN3a), (perinodal extension: present)
9. Lymphatic invasion : present
10. Venous invasion : not identified
11. Perineural invasion : present
12. Peritoneal cytology : negative
13. AJCC stage by 7th edition: rpT4a N3a

¸¶Áö¸· ³»½Ã°æÀÌ 1³â ÀüÀ̾ú´Ù°í ÇÕ´Ï´Ù. ¿ª½Ã cardia¿Í À§Ã¼»óºÎ ¼Ò¸¸Àº ³»½Ã°æ °Ë»çÀÇ Áß¿ä blind areaÀÔ´Ï´Ù.


4. Asymptomatic gastric anisakiasis

´ëÀå¾Ï ȯÀÚ·Î ÃßÀû°üÂû Áß ¿ì¿¬È÷ ½ÃÇàÇÑ °ËÁø À§³»½Ã°æÀ̾ú½À´Ï´Ù. À§ fundus¿¡¼­ ÀÛÀº ±â»ýÃæÀÌ ¹ß°ßµÇ¾ú°í Á¶Á÷°â»ç·Î Á¦°ÅÇÏ¿´½À´Ï´Ù. °Ë»ç ÈÄ È¯ÀÚ¿¡°Ô ¹®ÀÇÇÏ¿´À» ¶§ Àü³¯ ±¤¾îȸ¸¦ ¸Ô¾ú´Ù°í ÇÏ¿´½À´Ï´Ù. ½Å±âÇÏ°Ôµµ ¾Æ¹«·± Áõ»óÀÌ ¾ø¾ú½À´Ï´Ù.

* Âü°í: EndoTODAY ¾Æ´Ï»çÅ°½º


5. Colon cancer.

Sigmoid colon, anterior resection:
Adenocarcinoma, moderately differentiated
1. Location: sigmoid colon
2. Gross type: ulceroinfiltrative
3. Size: 1.6x1.5 cm
4. Depth of invasion: invades subserosa (pT3) (distance from nearest serosa: about >5.0 mm)
5. Resection margin: free from carcinoma, safety margin: proximal, 5.5 cm ; distal, 6 cm ; radial, >5.0 mm
6. Regional lymph node metastasis : no metastasis in all 12 regional lymph nodes(pN0)
7. Lymphatic invasion: not identified
8. Venous invasion: not identified
9. Perineural invasion: not identified
10. Tumor budding : negative
11. Pathologic staging: pT3 N0

Áõ·Ê¸¦ ³íÀÇÇÏ´Â °úÁ¤¿¡¼­ carcinoid°¡ ½ÉÇÏ¸é ºñ½ÁÇÏ°Ô º¸ÀÏ ¼ö ÀÖÀ» °Í °°´Ù´Â ÀÇ°ßÀÌ ÀÖ¾ú½À´Ï´Ù. ±×·¯³ª ±Ë¾çÀÇ Á¦¹æÀ» ÀÌ·ç´Â ºÎÀ§ÀÇ Á¡¸·ÀÌ ºñÁ¤»óÀÌ°í, º´º´ ¿·¿¡ Á¡¸·º´¼Ò ÁÖº¯¿¡¼­ º¸´Â Èò Á¡ÀÌ º¸ÀÌ´Â °Í µîÀÇ ÀÌÀ¯·Î Á¡¸·ÇϺ´¼Òº¸´Ù´Â Á¡¸·º´¼Ò·Î ÆÇ´ÜÇÏ´Â °ÍÀÌ ¸ÂÀ» °Í °°½À´Ï´Ù.


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[References]

1) SMC Endoscopy Unit »ï¼º¼­¿ïº´¿ø ³»½Ã°æ½Ç

2) SMC Monday GI conference »ï¼º¼­¿ïº´¿ø ÀÏ¿ø³»½Ã°æ±³½Ç ¿ù¿äÁ¡½É¼ÒÈ­±âÁý´ãȸ

3) SMC Thursday endoscopy conference »ï¼º¼­¿ïº´¿ø ÀÏ¿ø³»½Ã°æ±³½Ç ¸ñ¿äÁ¡½É³»½Ã°æÁý´ãȸ

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