Endoscopic ultrasonOgraphy and CT in preoperative TN staging of esophageal cancer / 中华消化内镜杂志

ABSTRACT

objective To retrospectively evaluate the accuracy of endoscopic ultrasonography (EUS)and CT in preoperative tumor,and nodal metastasis(TN)staging of esophageal carcinoma.Methods TN stages of 87 cases diagnosed with preoperative EUS and CT were compared with postoperative pathological results.No patient underwent radiotherapy or chemotheraphy.The radial echoendoscope was used,and balloon dilation was required in 5 cases with stricture.Results The total accuracy of T staging with EUS was 85.1%.CT could not differentiate Tl from T2.The sensitivity of EUS for N staging was 85.0%,higher than that of CT(60.8%).However,some lymph nodes which were not detected by EUS could be revealed by CT.Accuracy of EUS plus CT in T staging is 85.1%.and that in N staging is 90.8%.Conclusion EUS is the most accurate measure in assessing the depth of tumor invasion,whereas the combination of EUS and CT is capable of an overall evaluation for TNM staging.