Table 4.
Characteristics of Intra-abdominal Recurrences and a Comparison between those Recurring In-field versus Out-of-Field
| Variable |
All Intra-abdominal (n=55) Value or No. (%) |
In-field (n=28) Value or No (%) |
Out-of-field (n=27) Value or No (%) |
P value |
|---|---|---|---|---|
| Tumor size | ||||
| ≤ 5 cm | 8 (15) | 3 (11) | 5 (19) | 0.41 |
| > 5 cm | 47 (86) | 25 (89) | 22 (81) | |
| Grade | ||||
| Low | 8 (15) | 7 (25) | 1 (4) | 0.06 |
| Intermediate | 8 (15) | 3 (11) | 5 (18) | |
| High | 39 (70) | 18 (64) | 21 (78) | |
| Histopathology | ||||
| Liposarcoma | 26 (47) | 11 (39) | 15 (56) | 0.17 |
| Other | 29 (53) | 17 (61) | 12 (44) | |
| De novo at presentation | ||||
| Yes | 28 (51) | 18 (64) | 10 (37) | 0.04 |
| No | 27 (49) | 10 (36) | 17 (63) | |
| Treatment Approach | ||||
| Preop RT | 39 (71) | 16 (57) | 23 (85) | 0.02 |
| Postop RT | 16 (29) | 12 (43) | 4 (15) | |
| Final Surgical Resection Margin | ||||
| Positive/Uncertain | 35 (64) | 17 (61) | 18 (67) | 0.65 |
| Negative | 20 (36) | 11 (39) | 9 (33) | |
| Radiation Dose, Gy | ||||
| ≤ 50 | 23 (42) | 13 (46) | 10 (37) | 0.48 |
| > 50 | 32 (58) | 15 (54) | 17 (63) | |
| Concurrent Chemotherapy | ||||
| Yes | 8 (15) | 2 (7) | 6 (22) | 0.11 |
| No | 47 (86) | 26 (93) | 21 (78) | |
| Recurrence Pattern | ||||
| Solitary | 43 (78) | 27 (96) | 16 (59) | <0.001 |
| Multifocal | 12 (22) | 1 (4) | 11 (41) |
Abbreviations: RT, radiation therapy.