Table 3.
Predictive factors of lymph node metastasis in papillary adenocarcinoma-type early gastric cancers n (%)
| Factors |
Lymph node metastasis |
P value | |
| Present (n = 9) | Absent (n = 40) | ||
| Location | 0.712 | ||
| Upper third | 0 (0) | 5 (100) | |
| Middle third | 0 (0) | 2 (100) | |
| Lower third | 9 (21.4) | 33 (78.6) | |
| Macroscopic type | 0.683 | ||
| Elevated | 6 (16.7) | 30 (83.3) | |
| Depressed | 3 (23.1) | 10 (76.9) | |
| Ulceration | 0.498 | ||
| Absent | 6 (16.2) | 31 (83.8) | |
| Present | 3 (25.0) | 9 (75.0) | |
| Histologic type | 0.470 | ||
| PP type | 4 (14.3) | 24 (85.7) | |
| MP with diff. | 2 (16.7) | 10 (83.3) | |
| MP with undiff. | 3 (33.3) | 6 (66.7) | |
| Tumor size | 0.253 | ||
| ≤ 30 mm | 3 (12.5) | 21 (87.5) | |
| > 30 mm | 6 (24.0) | 19 (76.0) | |
| Depth of invasion | 0.195 | ||
| Mucosa | 1 (7.1) | 13 (92.9) | |
| Submucosa | 8 (22.9) | 27 (77.1) | |
| Lymphovascular invasion | 0.016 | ||
| Absent | 3 (8.6) | 32 (91.4) | |
| Present | 6 (42.9) | 8 (57.1) | |
PP type: Pure papillary type; MP + diff.: Mixed papillary type with differentiated component; MP + undiff.: Mixed papillary type with undifferentiated component.