Table 2 Comparison of clinicopathologic features of gastrointestinal stromal tumors (GISTs) of various sites
Variables | Stomach | Small intestine | Large intestine | P-value |
|---|---|---|---|---|
N (%) | N (%) | N (%) | ||
Age (years) | ||||
Mean ± SD | 54.50 ± 11.99 | 52.10 ± 15.53 | 55.25 ± 14.29 | 0.852 |
Age groups (years) | ||||
≤ 30 | 1 (3.3) | 1 (10) | 0 | 0.785 |
31–50 | 9 (30) | 4 (40) | 3 (37.5) | |
> 50 | 20 (66.7) | 5 (50) | 5 (62.5) | |
Gender | ||||
Male | 15 (50) | 8 (80) | 6 (75) | 0.159 |
Female | 15 (50) | 2 (20) | 2 (25) | |
Size | ||||
Mean ± SD | 8.96 ± 3.94 | 10.20 ± 4.75 | 10.28 ± 3.11 | 0.570 |
Size groups (cm) | ||||
≤ 2 | 0 | 1 (10) | 0 | 0.287 |
2.1–5 | 4 (13.3) | 1 (10) | 1 (12.5) | |
5.1–10 | 15 (50) | 2 (20) | 2 (25) | |
> 10 | 11 (36.7) | 6 (60) | 5 (62.5) | |
Morphology | ||||
Spindle cell | 20 (66.7) | 10 (100) | 7 (87.5) | 0.318 |
Eptheloid | 3 (10) | 0 | 0 | |
Mixed | 7 (23.3) | 0 | 1 (12.5) | |
Prognostic group | ||||
Very low risk | 4 (13.3) | 1 (10) | 0 | 0.214 |
Low risk | 10 (33.3) | 0 | 1 (12.5) | |
Moderate risk | 3 (10) | 1 (10) | 1 (12.5) | |
High risk | 13 (43.3) | 8 (80) | 6 (75) | |
Grade (mitotic activity) | ||||
Low grade (≤ 5/50HPFs) | 15 (50) | 3 (30) | 5 (62.5) | 0.456 |
High grade (> 5/50HPFs) | 15 (50) | 7 (70) | 3 (37.5) | |