Lateral lymph node dissection combined with endoscopic submucosal dissection for early rectal cancer complicated with ulcerative colitis: A case report

Lymph node metastases rarely occur in early rectal cancer, but this possibility should not be ignored, especially when dealing with patients with complex clinical backgrounds. This case also emphasizes the importance of individualized diagnosis as well as the extremely high clinical value of Lateral lymph node dissection combined with endoscopic submucosal dissection, and provides a reference for the diagnosis and treatment of similar cases.