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Colon, transverse colon, endoscopic mucosal resection

GASTROINTESTINAL STROMAL TUMOR, VERY LOW RISK (by the guideline on Korean J Pathol 2012;46:443)
1) Tumor size: 1.6x1.2x0.8 cm
2) Mitotic count: 1/ 5 square millimeters
3) Tumor cell type: spindle
4) Extent of tumor: submucosa
5) Necrosis: absent
6) Nuclear pleomorphism: mild
7) Vascular invasion: not identified
8) Perineural invasion: not identified
9) Lymphatic invasion: not identified
10) Surgical margin: free from tumor
11) Lymph node: not submitted
12) Other findings: none
13) Pathologic staging (by AJCC 7th); pT1Nx low mitotic rate

Note) Results of immunohistochemistry;
- C-kit; positive
- SMA; negative
- S-100 protein; negative
- CD34; negative
- Ki-67 labeling index; less than 1%

Korean J Pathol 2012


[References]

1) EndoTODAY ¾Öµ¶ÀÚ Áõ·Ê ÆíÁö

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