fig3
![Standardization of bilateral upper mediastinal lymph node dissection using microanatomical concepts in minimally invasive esophagectomy](https://image.oaes.cc/c3b2c80e-e927-4f98-867f-cad05e84b825/3487.fig.3.jpg)
Figure 3. Thoracoscopic 4K ultra-high-definition view. A: detaching the meso-esophagus on the left side while preserving the visceral sheath; B: aggregating the lymphatic chain to the esophageal side on the left side; C: upper mediastinal lymph node dissection on the right side; D: upper mediastinal lymph node dissection on the left side