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  • Title: Familial adenomatous polyposis in children younger than age ten years: a multidisciplinary clinic experience.
    Author: Attard TM, Tajouri T, Peterson KD, Tinley S, Thorson AG, Lynch HT.
    Journal: Dis Colon Rectum; 2008 Feb; 51(2):207-12. PubMed ID: 18157572.
    Abstract:
    PURPOSE: Children with familial adenomatous polyposis have a greater mortality and morbidity in the first decade of life compared with the general population. Some children with a more severe disease phenotype present early with colorectal adenomata and may require colectomy at an early age. We present our multidisciplinary clinic experience with familial adenomatous polyposis in children younger than age ten years at the time of presentation. METHODS: A cross-sectional analysis was performed on all patients with suspected or confirmed familial adenomatous polyposis presenting in the first decade of life and followed by the multidisciplinary Pediatric Hereditary Polyposis Clinic at our institutions. Analysis included demographics, clinical presentation and course, gene mutation testing, endoscopic-histologic findings, and surgical outcome. RESULTS: Twenty-two children (11 males) presented with suspected or confirmed familial adenomatous polyposis. Two were discharged from follow-up after negative adenomatous polyposis coli gene mutation testing. The rest underwent annual hepatoblastoma surveillance through age ten years with negative findings. Twelve patients presented with symptoms: six had de novo familial adenomatous polyposis. Seven had gastrointestinal hemorrhage and went on to colonoscopy. Four patients with adenomatous polyposis coli gene mutation at codon 1309 were referred for colectomy before age ten years. Referral to colectomy was earlier in patients with 1309 mutation and with de novo familial adenomatous polyposis. CONCLUSIONS: Children with familial adenomatous polyposis younger than age ten years may present presymptomatically for disease surveillance. Familial adenomatous polyposis with adenomatous polyposis coli gene mutation at codon 1309 entails a risk of a more aggressive phenotype; early colectomy may be indicated in children harboring this gene mutation.
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