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Table 2 Comparison of clinicopathologic features of gastrointestinal stromal tumors (GISTs) of various sites

From: Clinicopathologic features and prognostic grouping of gastrointestinal stromal tumors (GISTs) in Pakistani patients: an institutional perspective

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)