A case of underwater cold snare polypectomy to be useful for a lesion at the appendiceal orifice

Abstract

An 81-year-old male patient underwent a screening colonoscopy, during which a 6 mm 0-IIa lesion was detected at the appendiceal orifice. To enhance visualization and confirm the nature of the lesion, we employed narrow-band imaging magnification, using which we confirmed that the lesion was a colorectal adenoma (JNET Type 2A). Consequently, we performed an underwater cold snare polypectomy (U-CSP) along with a two-part CSP and resection using biopsy forceps. In conclusion, our study demonstrates that U-CSP is an effective technique for managing appendiceal orifice lesions, allowing for accurate qualitative diagnosis and complete removal of lesions. This technique can contribute to reducing the risk of recurrence and the need for additional interventions, ultimately improving patient outcomes.