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수술 전 조직검사로 정확히 진단하기 어려운 종류입니다.

Stomach, subtotal gastrectomy:
Poorly-differentiated neuroendocrine carcinoma (G3)
1. Name of Procedure: Organ resection
2. Site of Tumor: Stomach (Antrum)
3. Diagnosis: Neuroendocrine carcinoma (G3)
4. WHO classification(2010): Poorly differentiated neuroendocrine carcinoma, large cell type
5. Multiplicity: Single
6. Size: 6x6 cm
7. Extent: Serosa
8. Grading: Mitotic Count(/10HPF): >20 (about 60/10 HPF)
9. Immunohistochemical Stains:
1) Synaptophysin : Positive
2) Chromogranin A: Negative
3) OPTIONAL : CD56 (+)
10. Lymphovascular invasion: present
11. Perineural invasion: present
12. Lymph node metastasis: [Number of positive nodes/Total number of nodes(7/32)
13. Resection Margins: Negative,Safety margin : proximal 3.5 cm, distal 3 cm
14. Other Pathologic Components: Presence of tumor necrosis (60 %)

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