Contractures, pterygia, and spondylocarpotarsal fusion syndrome 1A

Contractures, pterygia, and spondylocarpotarsal fusion syndrome-1A (CPSFS1) is characterized by contractures of proximal and distal joints, pterygia involving the neck, axillae, elbows, and/or knees, as well as variable vertebral, carpal, and tarsal fusions and short stature. Progression of vertebral fusions has been observed, and inter- and intrafamilial variability has been reported (Carapito et al., 2016; Zieba et al., 2017; Cameron-Christie et al., 2018). An autosomal recessive form of CPSFS (CPSFS1B; 618469) is caused by compound heterozygous mutation in the MYH3 gene.

OMIM