| [ Summary ] |
With the status shift from "phantom" to "real" carcinoma, stereomicroscopy has characterized colorectal IIc neoplastic lesions to have a ⅢS pit pattern, leading to the revision of the Kudo's pit pattern classification for colorectal neoplasms. In this regard, zoom magnifying colonoscope was made available in 1993 for clinical use and has since enabled the ⅢS pit to be diagnosed in vivo, marked a revolutionary advance as it has enabled not only the detection but also qualitative and quantitative diagnosis of all neoplastic colorectal lesions including IIc lesions; this breakthrough diagnostic modality allows for the diagnosis and treatment of these lesions in one visit. Further, combined with narrow-band imaging (NBI), a new image enhancement technology that became available later, magnifying colonoscopy has contributed to the detection and qualitative diagnosis of colorectal IIc lesions. In the years to come, it is eagerly hoped that young endoscopists will contribute to breakthroughs in colorectal cancer diagnosis, enabling further elucidation of colorectal IIc lesions. |