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Table 1 Clinicopathological findings of patients with omental extra-gastrointestinal stromal tumors (n = 57) [6, 10, 12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35]

From: Extra-gastrointestinal stromal tumor arising in the lesser omentum with a platelet-derived growth factor receptor alpha (PDGFRA) mutation: a case report and literature review

  Omental EGIST (n = 57) Whole GIST
Age (years, median, range) 63 (27–89) 60s
Sex (male/female) 32/25 (1.28:1) 1:1
Tumor size (cm, median, range) 15 (1–36)
Histologic morphology
 Spindle 30 (53.6%) 70%
 Epithelioid 16 (28.6%) 20%
 Mixed 8 (14.3%) 10%
 Myxoid 2 (3.6%)  
Mitotic rate (per 50 HPFs, median, range) 3 (0–115)