title: Beckwith-Wiedemann syndrome: development of nephroblastoma during the surveillance period.
abstract: Two children, with Beckwith-Wiedemann syndrome and hemihypertrophy who were followed by ultrasonography, developed a large nephroblastoma in the interval between two abdominal ultrasound examinations. The customarily suggested bi-annual examinations are not frequent enough and may give physicians and parents a false sense of security.
authors.affiliation: Montreal Children's Hospital, Quebec, Canada.
authors.forename: E M
authors.initials: EM
authors.lastname: Azouz
authors.forename: E J
authors.initials: EJ
authors.lastname: Larson
authors.forename: J
authors.initials: J
authors.lastname: Patel
authors.forename: M T
authors.initials: MT
authors.lastname: Gyepes
mesh_terms: D001506:Beckwith-Wiedemann Syndrome / Q000150:complications* / Q000000981:diagnostic imaging; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007680:Kidney Neoplasms / Q000150:complications* / Q000000981:diagnostic imaging; D008297:Male; D013997:Time Factors; D014463:Ultrasonography; D009396:Wilms Tumor / Q000150:complications* / Q000000981:diagnostic imaging