RT Journal Article SR Electronic T1 Familial adenomatous polyposis in a 5 year old child: a clinical, pathological, and molecular genetic study. JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 157 OP 160 DO 10.1136/jmg.33.2.157 VO 33 IS 2 A1 S Distante A1 S Nasioulas A1 G R Somers A1 D J Cameron A1 M A Young A1 S M Forrest A1 R J Gardner YR 1996 UL http://jmg.bmj.com/content/33/2/157.abstract AB A girl aged 5 years 8 months presented with rectal bleeding; her father had had familial adenomatous polyposis (FAP) and a colectomy at the age of 23. Endoscopy showed extensive polyposis and she had a colectomy. The proband and her father had the common codon 1309 5 bp deletion APC mutation. This mutation predisposes to early onset of FAP, and consideration needs to be given to having molecular testing of at risk members of these families done in childhood.