Lesions in the duodenum are examined, focusing on their movement and anatomy, including the bulb and second part. Key factors for polyp resection are discussed, such as size and invasiveness. The major papilla is visualized, and the polyp is characterized for treatment options. Saline immersion aids in lesion visualization. An adenoma is confirmed benign, and the minor papilla's location is noted. A cold snare piecemeal resection is decided based on the patient's health.