Table 1.
Demographic and tumor characteristics in 24 patients with SPN.
| Data | Number of patients |
|---|---|
| Age (years) | 47.3±19.2 |
| Female/Male (%) | 19 (79.2)/5 (20.8) |
| Symptoms (%) | |
| Abdominal pain | 13 (54.2) |
| Dyspeptic complaints | 6 (25.0) |
| Abdominal pain+dyspeptic complaints | 2 (8.3) |
| Weight loss+dyspeptic complaints | 1 (4.2) |
| Abdominal pain+diarrhea | 1 (4.2) |
| Abdominal pain+back pain | 1 (4.2) |
| Tumor localization (%) | |
| Head | 9 (37.5) |
| Body | 4 (16.7) |
| Tail | 11 (45.8) |
| Tumor diameter (cm) | 5.8 (1.0–19.0) |
| Perineural invasion | 18 (75.0) |
| Capsular invasion | 12 (50.0) |
| Vascular invasion | 1 (4.2) |
| β-cadherin | 22 (91.7) |
| Cytokeratin | 5 (20.8) |
| Synaptophysin | 17 (70.8) |
| Vimentin | 17 (70.8) |
| Chromogranin | 6 (25.0) |
| NSE | 18 (75.0) |
| α-1 AT | 18 (75.0) |
| CD10 | 19 (79.2) |
| CD56 | 21 (87.5) |
NSE: neuron-specific enolase; AT: antitrypsin; SPN: solid pseudo-papillary neoplasm; CD: cluster of differentiation