| A rare hereditary developmental defect with connective tissue involvement and characteristics of cutis laxa of variable severity, in utero growth restriction, congenital hip dislocation and joint hyperlaxity, wrinkling of the skin, in particular the dorsum of hands and feet and progeroid facial features. Hypotonia, developmental delay, and intellectual disability are common. In addition, cataracts, corneal clouding, wormian bones, lipodystrophy and osteopenia have been reported. There is evidence the disease is caused by homozygous or compound heterozygous mutation in the PYCR1 gene on chromosome 17q25. |