Table 4.
Reported treatment based on the grade, size, and stage of 10,833 patients with gastrointestinal stromal tumor from the Surveillance, Epidemiology, and End Results (SEER) database 2000–2018.
| Tumor Size (n, %) | ||||
| Treatment | <2 cm | 2–5 cm | 6–10 cm | >10 cm |
| Surgery | 533 (90) | 1796 (77.9) | 1818 (63.4) | 1283 (57.3) |
| Chemotherapy ± surgery | 58 (9.8) | 506 (21.9) | 1042 (36.4) | 947 (42.3) |
| Adjuvant radiation | 1 (0.2) | 4 (0.2) | 4 (0.1) | 6 (0.3) |
| Neoadjuvant radiation | 0 | 0 | 1 (0.03) | 1 (0.04) |
| Tumor Grade (n, %) | ||||
| Treatment |
Well
differentiated |
Moderately
differentiated |
Undifferentiated/
anaplastic |
Poorly
Differentiated |
| Surgery | 1417 (80.1) | 1062 (70.7) | 523 (60.3) | 338 (61) |
| Chemotherapy ± surgery | 349 (19.7) | 426 (28.4) | 330 (38.1) | 208 (37.5) |
| Adjuvant radiation | 1 (0.05) | 7 (0.5) | 7 (0.7) | 4 (0.7) |
| Neoadjuvant radiation | 1 (0.05) | 7 (0.5) | 7 (0.7) | 4 (0.7) |
| Tumor Stage (n, %) | ||||
| Treatment | Localized | Distant | Regional | |
| Surgery | 4895 (73.6) | 1005 (44.9) | 1245 (63.8) | |
| Chemotherapy ± surgery | 1735 (26.1) | 1222 (54.6) | 690 (35.4) | |
| Adjuvant radiation | 19 (0.3) | 10 (0.4) | 12 (0.6) | |
| Neoadjuvant radiation | 1 (0.01) | 1 (0.04) | 4 (0.2) | |