Polysyndactyly

Polysyndactyly or PPD4 is a form of preaxial polydactyly of fingers (see this term), a limb malformation syndrome, characterized by the presence of a thumb showing the mildest degree of duplication, being broad, bifid or with radially deviated distal phalanx. Syndactyly of various degrees of third-and-fourth fingers is occasionally present.

Fibular hypoplasia

Underdevelopment of the fibula.


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PMID (PMCID)
16007608
 OTHER
Pallister-Hall syndrome: unreported skeletal features of a GLI3 mutation.
Roscioli T, Kennedy D, Cui J, Fonseca B, Watson GF, Pereira J, Xie YG, Mowat D.
Am J Med Genet A. 2005;136A(4):390-4.
It also suggests that PHS should be included in the differential diagnosis of antenatally ascertained acromesomelic limb shortening and bowing with fibular hypoplasia particularly in the presence of polysyndactyly.