Frank Ter Haar syndrome (FTHS) is a rare skeletal dysplasia with classical features like megalocornea, finger flexion deformities, prominent coccyx and heart defects. The main characteristics are brachycephaly, wide fontanels, prominent forehead, hypertelorism, prominent eyes, macrocornea with or without glaucoma, small chin, bowing of the long bones, and flexion deformity of the fingers. The most common underlying genetic defect in FTHS appears to be a mutation in the SH3PXD2B gene. Patients appeared to share many of the craniofacial and skeletal features normally associated with Melnick-Needles syndrome. However the autosomal recessive pattern of inheritance and congenital cardiac defects distinguished the syndrome as a separate entity.
Category
Congenital malformation
Brite
Human diseases in ICD-11 classification [BR:br08403]
20 Developmental anomalies
Multiple developmental anomalies or syndromes
LD25 Syndromes with face or limb anomalies as a major feature
H01816 Frank-ter Haar syndrome
Iqbal Z, Cejudo-Martin P, de Brouwer A, van der Zwaag B, Ruiz-Lozano P, Scimia MC, Lindsey JD, Weinreb R, Albrecht B, Megarbane A, Alanay Y, Ben-Neriah Z, Amenduni M, Artuso R, Veltman JA, van Beusekom E, Oudakker A, Millan JL, Hennekam R, Hamel B, Courtneidge SA, van Bokhoven H
Title
Disruption of the podosome adaptor protein TKS4 (SH3PXD2B) causes the skeletal dysplasia, eye, and cardiac abnormalities of Frank-Ter Haar Syndrome.
