Fig. 1From: Lateral lymph node metastasis in a patient with T1 upper rectal cancer treated by lateral lymph node dissection: a case report and brief literature reviewEndoscopic and proctographic findings. a Colonoscopy revealed a pedunculated-type tumor measuring 1.5 cm × 1.0 cm. b Proctographic examination revealed a filling defect in the upper rectum (arrow)Back to article page