Table 1. Basic features of malignant esophageal granular cell tumors: literature overview.
| Basic characteristics | No. of references in total | Results | No. |
|---|---|---|---|
| Age | ∑ = 16 | 52,3 (21–81, median 60) | |
| Sex (M/F) | ∑ = 16 | 4/12 | |
| Symptoms | ∑ = 11 | Dyspnoea | 4 |
| Dysphagia | 5 | ||
| Cough, hoarse voice | 2 | ||
| Back pain | 1 | ||
| Palpable resistance | 1 | ||
| Asymptomatic | 1 | ||
| Size (mm) | ∑ = 11 | 70,5 (12–150, median 54) | |
| Location | ∑ = 15 | Cervical | 2 |
| Upper thoracic | 2 | ||
| Middle thoracic | 5 | ||
| Lower thoracic | 4 | ||
| Mediastinum | 3 | ||
| Invasion | ∑ = 11 | Trachea | 5 |
| Pulmonary hilum, pleura | 2 | ||
| Soft tissue | 6 | ||
| Esophageal wall (preserved adventitia) | 5 | ||
| Therapy | ∑ = 13 | Esophagectomy | 2 |
| Esophageal resection | 9 | ||
| Mediastinal, lung and chest wall resection | 1 | ||
| Inoperable | 1 | ||
| Alternative | 1 | ||
| Surveillance (months) | ∑ = 11 | 18,3 (7–52, median 14) | |
| Disease-free | 2 (surveillance 10 months) | ||
| Metastasis site | ∑ = 13 | Liver | 4 |
| Bone | 3 | ||
| Pleura | 2 | ||
| Lung | 2 | ||
| Cervical lymph nodes | 1 | ||
| Not reported | 5 |