Preoperative marking of the proximal resection margin in esophageal cancer with a surgical fiducial marker: First experiences

Figure 1 Fiducial marker on intraoperative ultrasound, with the probe placed on the exterior of the esophagus during the right thoracotomy portion of the operation, before resection.

Figure 2 Macroscopic view during the right thoracotomy portion of the operation, with the two resection lines marked with a sterile pen, before resection.

Figure 3 Fiducial marker on intraoperative ultrasound, with the probe placed on the exterior of the esophagus during the right thoracotomy portion of the operation, before resection.