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Adenomatous Polyposis Syndromes · GI Guidelines
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Adenomatous Polyposis Syndromes
American College of Gastroenterology · 2026
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Who needs germline genetic testing?
Cumulative adenoma count, extracolonic features, family history
Surveillance plan for a known syndrome
FAP, attenuated FAP, MAP, PPAP, rare syndromes
Gastric polyposis findings
Fundic gland polyps, adenomas, high-risk gastric features
Negative genetic test (CPUE)
Colonic polyposis of uncertain etiology
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