Table 1.
Baseline characteristics of patients with primary malignant melanoma of esophagus
| Total (n = 17) | |
|---|---|
| Age (years) | |
| Mean ± SD | 61.0 ± 12.3 |
| Median (range) | 60 (41–83) |
| Sex (%) | |
| Male | 15 (88.2) |
| Female | 2 (11.8) |
| Chief complaint (%) | |
| Dysphagia | 9 (52.9) |
| Epigastric discomfort | 2 (11.8) |
| Chest pain | 1 (5.9) |
| Dyspepsia | 1 (5.9) |
| Nausea | 1 (5.9) |
| Weight loss | 1 (5.9) |
| No symptom | 2 (11.8) |
| Smoking (%) | |
| No | 9 (52.9) |
| Yes | 8 (47.1) |
| Alcohol ingestion (%) | |
| No | 6 (35.3%) |
| Yes | 11 (64.7%) |
| BMI (kg/m2) | |
| Mean ± SD | 23.8 ± 2.6 |
| Median (range) | 23.7 (19–30) |
| Endoscopic morphology (%) | |
| Mass-forming | 15 (88.2) |
| Diffusely infiltrative | 2 (11.8) |
| Amelanotic type (%) | |
| No | 13 (76.5) |
| Yes | 4 (23.5) |
| Endoscopic size* (cm) | |
| Mean ± SD | 4.8 ± 2.2 |
| Median (range) | 5.0 (2–10) |
| Endoscopic location (%) | |
| Upper | 3 (17.6) |
| Middle | 3 (17.6) |
| Lower | 11 (64.7) |
| Clinical staging (%) | |
| Localized (N0) | 8 (47.1) |
| Node positive (N+) | 5 (29.4) |
| Metastatic (M1) | 4 (23.5) |
| Surgery (%) | |
| No | 5 (29.4) |
| Yes | 10 (58.8) |
| Follow-up loss | 2 (11.8) |
SD standard deviation, BMI body mass index
*Two patients with diffusely infiltrative type tumor were excluded