Abstract
Endoscopic diagnosis is the most important part of endoscopy. Recently, we diagnosed the so-called “pit pattern diagnosis” using magnifying endoscopy, which makes it possible to perform high-level diagnosis that approximates pathological diagnosis. In pit pattern classification (Kudo’s classification), the proper rate of discrimination was reported to be approximately 96–98% between tumors and non-tumors and 70–90% between adenoma and cancer. In submucosal invading cancer, the risk of vascular infiltration and lymph node metastasis is proportional to the vertical invading (T1) of the cancer. Therefore, it is necessary to diagnose the degree of invading into the submucosa before endoscopic treatment of early colorectal cancer. Magnifying endoscopy showed that when used as an indicator of deep submucosal invading of the type Vn, an appropriate discrimination rate is about 90%. Thus, a qualitative diagnosis with high accuracy can be achieved with magnifying endoscopy.
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Yamano, Ho. (2020). Magnifying Endoscopy: Pit Pattern Diagnosis. In: Tanaka, S., Saitoh, Y. (eds) Endoscopic Management of Colorectal T1(SM) Carcinoma. Springer, Singapore. https://doi.org/10.1007/978-981-13-6649-9_2
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DOI: https://doi.org/10.1007/978-981-13-6649-9_2
Publisher Name: Springer, Singapore
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