| Accurate staging of esophageal cancer is important because optimal management and survival closely correlates with tumor, nodal and metastatic(TNM) stage. Endoscopic ultrasonography, CT and PET are performed in staging of newly diagnosed patients with esophageal cancer. Endoscopic ultrasound has superior T staging ability over PET and CT, it can judge the depth of tumor exactly. The three techniques have diffient value for assessment nodal metastases. PET is especially useful when there is suspicion of distant metastases. Integrate the three techniques will improve the overall accuracy in preoperative staging of patients with esophageal cancer. |