Summary of pathological findings
| Histology | |||
| Neonatal gastric mucosa | n=2 | ||
| Uninvolved gastric mucosa | n=17 | ||
| Cancerous mucosa | n=31 (double cancer n=1, triple cancer n=1) | ||
| Differentiated adenocarcinoma | n=18 | Undifferentiated adenocarcinoma | n=13 |
| Papillary adenocarcinoma | n=5 | Poorly differentiated adenocarcinoma | n=12 |
| Tubular adenocarcinoma | n=13 | Signet ring cell carcinoma | n=1 |
| Clinicopathological findings | Differentiated adenocarcinoma | Undifferentiated adenocarcinoma | Total |
|---|---|---|---|
| Depth of invasion: MP, muscularis propria; SE, serosa exposed; SI, serosa infiltrating; SM, submucosa; SS, subserosa. Mode of infiltrative growth: INFα, the tumour shows expanding growth and a distinct border from the surrounding tissue; INFβ, this category is between INFα and INFγ; INFγ, the tumour shows infiltrating growth and an indistinct border from the surrounding tissue. Conclusive stage grouping: stage I, t1(M•SM)n0, t1n1, or t2 (MP•SS) no; stage II, t3(SE)no, t2n1, or t1n2; stage III, t4(SI)n0, t3n1, t4n1, t2n2, t3n2, t1n3, or t2n3; stage IV, t4n2, t3n3, or cases with direct invasion into surrounding organs, peritoneal dissemination, and/or liver metastasis. | |||
| Depth of invasion | |||
| SM | n=5 | n=4 | n=9 |
| MP | n=4 | n=1 | n=5 |
| SS | n=5 | n=4 | n=9 |
| SE | n=3 | n=4 | n=7 |
| SI | n=1 | n=0 | n=1 |
| Mode of infiltrative growth | |||
| INFα | n=5 | n=2 | n=7 |
| INFβ | n=12 | n=4 | n=16 |
| INFγ | n=1 | n=7 | n=8 |
| Lymph node metastasis | |||
| Present | n=10 | n=6 | n=16 |
| Absent | n=6 | n=6 | n=12 |
| Conclusive stage grouping | |||
| Stage I | n=7 | n=6 | n=13 |
| Stage II | n=3 | n=1 | n=4 |
| Stage III | n=5 | n=4 | n=9 |
| Stage IV | n=1 | n=1 | n=2 |