Pathological risk factors for lymph node metastasis of T1 colorectal carcinoma 1. Management of T1 colorectal carcinoma with special reference to criteria for curative endoscopic resection. 2. Condition of muscularis mucosae is a risk factor for lymph node metastasis in T1 colorectal carcinoma.
The clinical evaluation of the effectiveness and safety of colorectal endoscopic submucosal dissection 1. Clinical outcomes of endoscopic submucosal dissection and endoscopic mucosal resection for laterally spreading tumors larger than 20 mm. 2. Endoscopic submucosal dissection for colorectal neoplasms in elderly patients.
Clinical significance of combined diagnosis with both surface pattern and vascular pattern, and its characteristics in each growth type of colorectal tumor. 1. Characterization of colorectal tumors using narrow-band imaging magnification: Combined diagnosis with both pit pattern and microvessel features. 2. Characteristic magnifying narrow-band imaging features of colorectal tumors in each growth type.