Table 1.
Overall frequency and percentage distribution of patients with early gastric neoplasia after ESD procedure
| Clinico-pathologic parameter | Total number of EGC lesions (n=162) | Percentage |
|---|---|---|
| Mean Age in years (±SD) | 61.10 ± 8.76 | – |
| Gender | ||
| Female | 42 | 25.9% |
| Male | 120 | 74.1% |
| Tumor location | ||
| Lower one third | 95 | 58.6% |
| Middle or Upper third | 67 | 41.4% |
| Gross tumor type | ||
| Group 1 | 46 | 28.4% |
| Group 2 | 116 | 71.6% |
| Ulceration status | ||
| Absent | 135 | 83.% |
| Present | 27 | 16.7% |
| Size of tumor | ||
| ≤ 2 cm | 111 | 68.5% |
| > 2 cm | 51 | 31.5% |
| Differentiation | ||
| Differentiated | 129 | 79.6% |
| Undifferentiated | 33 | 20.4% |
| Lauren’s category | ||
| Intestinal | 129 | 79.6% |
| Diffuse/Mixed | 33 | 20.4% |
| Level of tumor invasion | ||
| Intra-mucosal tumor | 132 | 81.5% |
| Submucosal tumor | 30 | 18.5% |
| Horizontal margin | ||
| Negative | 159 | 98.1% |
| Positive | 3 | 1.9% |
| Vertical margin | ||
| Negative | 158 | 97.5% |
| Positive | 4 | 2.5% |
| Lympho-vascular invasion | ||
| Absent | 159 | 98.1% |
| Present | 3 | 1.9% |
| Resection type (en-bloc) | 162 | 100% |
| Curability outcome (non-e-curative) | 36 | 22.2% |
| Complete resection | 154 | 95% |
ESD Endoscopic Submucosal Dissection, EGC Early Gastric Cancer, SD Standard Deviation, Group 1 = lesions with Protruding (0-I), Purely superficial flat (0-IIb) and Mixed variants with 0-IIb predominant, Group2 = Purely superficial elevated (0-IIa) or depressed (0-IIc) or mixed variants with either 0-IIa or 0-IIc predominant