Triphalangeal thumb-polysyndactyly
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(syndrome TPT - PS)
Very rare. Autosomal dominant transmission with variable expressivity of a duplication of a regulatory element in the LMBR1 gene on 7q36. Association of an triphalangeal thumb with pre- or postaxial polydactyly, isolated syndactyly or polysyndactyly. The foot is less severely involved than the hands.
Anesthetic implications:
echocardiography to exclude any cardiac malformation.
References :
Updated: September 2018