Table 2 Clinicopathological characteristics in 84 patients with primary GISTs
Characteristic | Number (%) |
|---|---|
Sex | Â |
  Male | 46 (54.8) |
  Female | 38 (45.2) |
Age (years) | Â |
  ≤60 | 41 (48.8) |
  >60 | 43 (51.2) |
  Range (median) | 23 to 78 (61.5) |
Clinical manifestation | Â |
  Abdominal discomfort or pain | 36 (42.9) |
  Gastrointestinal bleeding | 24 (28.6) |
  Obstruction | 6 (7.2) |
  Perforation or rupture | 3 (3.6) |
  Weight loss | 2 (2.4) |
  Asymptomatic | 13 (15.5) |
Primary tumor site | Â |
  Stomach | 56 (66.7) |
  Small intestine | 20 (23.8) |
  Colorectum | 5 (6.0) |
  Intraperitoneally with unknown origin | 3 (3.6) |
Tumor size (cm) | Â |
  ≤5 | 41 (48.8) |
  5.1 to 10 | 34 (40.5) |
  >10 | 9 (10.7) |
  Range (median) | 1.5 to 20 (5.3) |
Predominant cell type | Â |
  Spindle | 63 (75.0) |
  Epithelioid | 13 (15.5) |
  Mixed | 8 (9.5) |
Mitotic index (per 50 high power fields) | Â |
  0 to 5 | 53 (63.1) |
  5.1 to 10 | 21 (25.0) |
  >10 | 10 (11.9) |
Cellularity | Â |
  Paucicellular | 11 (13.1) |
  Moderate | 33 (39.3) |
  High | 40 (47.6) |
Necrosis | Â |
  Yes | 34 (40.5) |
  No | 50 (59.5) |
Tumor rupture | Â |
  Yes | 5 (6.0) |
  No | 79 (94.0) |
Risk classification | Â |
  Very low | 5 (6.0) |
  Low | 26 (31.0) |
  Moderate | 17 (20.2) |
  High | 36 (42.9) |
Follow-up | Â |
  Relapse-free survival | 59 (70.2) |
  Recurrent | 16 (19.1) |
  Metastasis | 9 (10.7) |