title: Familial occurrence of unilateral biphalangeal duplication of the thumb.
abstract: Duplication of the thumb is not an uncommon condition and the biphalangeal type is considered to be a sporadic event. We report the familial occurrence of a unilateral thumb polydactyly type 4 of Wassel (12) or preaxial polydactyly type 1 of Temtamy (11).
authors.affiliation: Orthopaedic Department, University Hospital Pellenberg, Katholieke Universiteit Leuven, Belgium.
authors.forename: L
authors.initials: L
authors.lastname: De Smet
authors.forename: G
authors.initials: G
authors.lastname: Fabry
mesh_terms: D002648:Child; D005260:Female; D006228:Hand Deformities, Congenital / Q000000981:diagnostic imaging / Q000235:genetics*; D006801:Humans; D010641:Phenotype; D011859:Radiography; D013933:Thumb / Q000002:abnormalities* / Q000000981:diagnostic imaging