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DOI: 10.1055/s-0028-1098822
© Georg Thieme Verlag Stuttgart ˙ New York
Die Rolle des sessilen serratierten Adenoms für die Entstehung sog. Intervallkarzinome im Kolorektum
Sessile Serrated Adenomas: Possible Precursors of So-called Interval Colorectal Cancers?Publication History
Publication Date:
13 March 2009 (online)

Zusammenfassung
Das Auftreten von sog. Intervallkarzinomen im Rahmen von Vorsorgekoloskopien wirft die Frage auf, ob es sich hier allein um Defizite der Endoskopie handelt, oder ob es auch biologisch aggressivere Vorläuferläsionen als die traditionellen Dickdarmadenome gibt, welche eine raschere Progression zum Karzinom zeigen. Gestützt auf aktuelle molekulargenetische Befunde, die einen neuen, alternativen Kanzerogeneseweg (= „Serrated Pathway“) aufzeigen, fokussiert sich das Interesse auf die serratierten bzw. „Sägeblatt“-Polypen. Die vorliegende Arbeit soll eine Übersicht über die Pathogenese, die Nomenklatur und Diagnostik dieser Läsionen geben und die klinischen Implikationen zur Therapie und Nachsorge aufzeigen.
Abstract
The occurrence of so-called interval colorectal cancers in surveillance colonoscopies raises the question whether these cancers were missed in previous colonoscopies or whether they have arisen from more aggressive precursor lesions with faster progression to invasive cancer than conventional adenomas in between colonoscopies. Current molecular findings suggest an alternate pathway of colorectal carcinogenesis (the “serrated pathway”), in which so-called serrated adenomas and not conventional adenomas are thought to act as the precursor lesions of colorectal cancers following this alternate route. This article will give an overview of the pathogenesis, nomenclature and diagnostics of these lesions and will show their implications for therapy and management.
Schlüsselwörter
sessiles serratiertes Adenom - traditionelles serratiertes Adenom - serratierter Signal- / Karzinogeneseweg - Präkanzerosen - Kolorektum
Key words
sessile serrated adenoma - traditional serrated adenoma - serrated pathway - precancerous lesions - colorectum
Literatur
- 1 Schmiegel W, Reinacher-Schick A, Arnold D et al. Aktualisierte S3-Leitlinie „Kolorektales Karzinim“ 2008. Z Gastroenterol. 2008; 46 799-840
- 2 Jass J R. Classification of colorectal cancer based on correlation of clinical, morphological and molecular features. Histopathology. 2007; 50 113-130
- 3 Toyota M, Ahuja N, Ohe-Toyota M et al. CpG island methylator phenotype in colorectal cancer. Proc Natl Acad Sci U S A. 1999; 96 8681-8686
- 4 Dong S M, Lee E J, Jeon E S et al. Progressive methylation during the serrated neoplasia pathway of the colorectum. Mod Pathol. 2005; 18 170-178
- 5 Morson B C. Precancerous lesions of the colon and rectum. Classification and controversial issues. Jama. 1962; 179 316-321
- 6 Longacre T A, Fenoglio-Preiser C M. Mixed hyperplastic adenomatous polyps / serrated adenomas. A distinct form of colorectal neoplasia. Am J Surg Pathol. 1990; 14 524-537
- 7 Otori K, Oda Y, Sugiyama K et al. High frequency of K-ras mutations in human colorectal hyperplastic polyps. Gut. 1997; 40 660-663
- 8 Ajioka Y, Watanabe H, Jass J R et al. Infrequent K-ras codon 12 mutation in serrated adenomas of human colorectum. Gut. 1998; 42 680-684
- 9 Chan T L, Zhao W, Leung S Y et al. BRAF and KRAS mutations in colorectal hyperplastic polyps and serrated adenomas. Cancer Res. 2003; 63 4878-4881
- 10 Jass J R, Whitehall V L, Young J et al. Emerging concepts in colorectal neoplasia. Gastroenterology. 2002; 123 862-876
- 11 Kambara T, Simms L A, Whitehall V L et al. BRAF mutation is associated with DNA methylation in serrated polyps and cancers of the colorectum. Gut. 2004; 53 1137-1144
- 12 Tateyama H, Li W, Takahashi E et al. Apoptosis index and apoptosis-related antigen expression in serrated adenoma of the colorectum: the saw-toothed structure may be related to inhibition of apoptosis. Am J Surg Pathol. 2002; 26 249-256
- 13 Azimuddin K, Stasik J J, Khubchandani I T et al. Hyperplastic polyps: “more than meets the eye”? Report of sixteen cases. Dis Colon Rectum. 2000; 43 1309-1313
- 14 Warner A S, Glick M E, Fogt F. Multiple large hyperplastic polyps of the colon coincident with adenocarcinoma. Am J Gastroenterol. 1994; 89 123-125
- 15 Jeevaratnam P, Cottier D S, Browett P J et al. Familial giant hyperplastic polyposis predisposing to colorectal cancer: a new hereditary bowel cancer syndrome. J Pathol. 1996; 179 20-25
- 16 Renaut A J, Douglas P R, Newstead G L. Hyperplastic polyposis of the colon and rectum. Colorectal Dis. 2002; 4 213-215
- 17 Torlakovic E, Snover D C. Serrated adenomatous polyposis in humans. Gastroenterology. 1996; 110 748-755
- 18 Young J, Jass J R. The case for a genetic predisposition to serrated neoplasia in the colorectum: hypothesis and review of the literature. Cancer Epidemiol Biomarkers Prev. 2006; 15 1778-1784
- 19 Hawkins N J, Ward R L. Sporadic colorectal cancers with microsatellite instability and their possible origin in hyperplastic polyps and serrated adenomas. J Natl Cancer Inst. 2001; 93 1307-1313
- 20 Makinen M J, George S M, Jernvall P et al. Colorectal carcinoma associated with serrated adenoma – prevalence, histological features, and prognosis. J Pathol. 2001; 193 286-294
- 21 Bariol C, Hawkins N J, Turner J J et al. Histopathological and clinical evaluation of serrated adenomas of the colon and rectum. Mod Pathol. 2003; 16 417-423
- 22 Goldstein N S, Bhanot P, Odish E et al. Hyperplastic-like colon polyps that preceded microsatellite-unstable adenocarcinomas. Am J Clin Pathol. 2003; 119 778-796
- 23 Goldstein N S. Small colonic microsatellite unstable adenocarcinomas and high-grade epithelial dysplasias in sessile serrated adenoma polypectomy specimens: a study of eight cases. Am J Clin Pathol. 2006; 125 132-145
- 24 Lazarus R, Junttila O E, Karttunen T J et al. The risk of metachronous neoplasia in patients with serrated adenoma. Am J Clin Pathol. 2005; 123 349-359
- 25 Rüschoff J, Aust D, Hartmann A. Kolorektale Sägeblattpolypen: Diagnostische Kriterien und klinische Relevanz der Typisierung. Verh Dtsch Ges Pathol. 2007; 91 119-125
G. B. Baretton
Institut für Pathologie · Universitätsklinikum „Carl Gustav Carus“ · TU Dresden
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