Kudo pit pattern

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The Kudo pit pattern can be assessed on colonoscopy and predicts the presence or absence of neoplasia and malignancy.[1]

Tabular summary

It is as follows:[2]

Pattern Pit morphology Significance
Type I round non-neoplastic
Type II stellate or papillary non-neoplastic
Type III tubular neoplastic (adenomatous)
Type IV branch-like neoplastic (adenomatous)
Type VI irregular neoplastic (invasive)
Type VN non-structural areas neoplastic (invasive)


  • A modified version includes a Type II-O pattern that is highly specific for SSAs.[3]

See also


  1. Matsuda, T.; Fujii, T.; Saito, Y.; Nakajima, T.; Uraoka, T.; Kobayashi, N.; Ikehara, H.; Ikematsu, H. et al. (Nov 2008). "Efficacy of the invasive/non-invasive pattern by magnifying chromoendoscopy to estimate the depth of invasion of early colorectal neoplasms.". Am J Gastroenterol 103 (11): 2700-6. doi:10.1111/j.1572-0241.2008.02190.x. PMID 18853968.
  2. Kobayashi, Y.; Kudo, SE.; Miyachi, H.; Hosoya, T.; Ikehara, N.; Ohtsuka, K.; Kashida, H.; Hamatani, S. et al. (Dec 2011). "Clinical usefulness of pit patterns for detecting colonic lesions requiring surgical treatment.". Int J Colorectal Dis 26 (12): 1531-40. doi:10.1007/s00384-011-1246-0. PMID 21607587.
  3. Kimura, T.; Yamamoto, E.; Yamano, HO.; Suzuki, H.; Kamimae, S.; Nojima, M.; Sawada, T.; Ashida, M. et al. (Mar 2012). "A novel pit pattern identifies the precursor of colorectal cancer derived from sessile serrated adenoma.". Am J Gastroenterol 107 (3): 460-9. doi:10.1038/ajg.2011.457. PMID 22233696.