Table 1 Clinicopathological characteristics of the neuroendocrine carcinoma (NEC) patients
Characteristics | n = 7 | ||
|---|---|---|---|
Age (years) | Median; range | 73 (68–78) | |
Sex | Male | 5 | |
Female | 2 | ||
Body mass index (kg/m2) | Median; range | 23 (19.4–30) | |
Performance status | 0/1/2/3 | 5/2/0/0 | |
Tumor location | Upper | 5 | |
Middle | 1 | ||
Lower | 1 | ||
Tumor diameter (mm) | Median; range | 50 (15–107) | |
Macroscopic type | 0/1/2/3/4/5 | 1/3/1/1/1/0 | |
Surgical procedures | Distal gastrectomy | 1 | |
Proximal gastrectomy | 0 | ||
Total gastrectomy | 6 | ||
Extent of lymphadenectomy | Less than D2 | 4 | |
D2 or more | 3 | ||
Tumor invasion | 1/2/3/4 | 1/1/3/2 | |
Lymph node metastasis | Negative | 1 | |
Positive | 6 | ||
Positive rate of lymph node metastasis (%) | Median; range | 5.5 (0–21.5) | |
Component of positive lymph nodes | Neuroendocrine | 7 | |
Non-neuroendocrine | 0 | ||
Both components | 0 | ||
TNM stage | I/II/III/IV | 1/3/3/0 | |