Table 2.
Incidence and characteristics of recurrent tumor.
| Residual disease | Local recurrence | Synchronous lesion | Metachronous lesion | |
|---|---|---|---|---|
| No. of recurrence, n (%) | 7 (1.0) | 6 (0.9) | 7 (1.0) | 31 (4.4) |
| Median duration of recurrence, month (range) | 9 (3–12) | 24 (18–60) | 12 (12–12) | 36 (15–84) |
| Pathology of recurrence, n (%) | ||||
| Adenoma | 5 (0.7) | 6 (0.9) | 4 (0.6) | 22 (3.2) |
| Low-grade dysplasia | 4 (0.6) | 5 (0.7) | 4 (0.6) | 19 (2.7) |
| High-grade dysplasia | 1 (0.1) | 1 (0.1) | 3 (0.4) | |
| Adenocarcinoma | 2 (0.3) | 3 (0.4) | 9 (1.3) | |
| Differentiated | 2 (0.3) | 2 (0.3) | 6 (0.9) | |
| Undifferentiated | 1 (0.1) | 3 (0.4) | ||
Values are number of cases with percent in parentheses.