Mullerian cyst of the posterior mediastinum: utilizing indocyanine green for thoracic duct visualization during robotic-assisted resection.

We describe a case of a 45-year-old female who underwent robot-assisted resection for a posterior mediastinal cyst abutting the thoracic duct. During this operation, near-infrared fluorescence lymphography with indocyanine green was successfully utilized for real-time intraoperative visualization of the thoracic duct. This technique should be considered when operating on structures near the thoracic duct to avoid and promptly detect iatrogenic injury.