Abstract
Abstract: In rectal cancer, lateral lymphatic spread is considered to worsen the prognosis. Therefore, accurate determination of lymph node involvement preoperatively is helpful in assessing the malignant character of the tumor and in determining resectability. The present study was performed to evaluate the accuracy, limitations, and usefulness of endoluminal ultrasonography in preoperatively diagnosing the localization of lymph node metastasis in rectal cancer. Seventy‐six patients with rectal cancer underwent preoperative endoscopic ultrasonography. Three of these patients had lateral lymphatic spread and all could be distinguished on endoscopic ultrasonography by the detection of involvement of lymph nodes in the anterior rectal space. These findings suggest that endoscopic ultrasonography plays a potentially useful role in the strategy for dealing with rectal cancer prior to surgery.
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