MYH3 and Spondylocarpotarsal synostosis: MYH3 mutations have additionally been identified in patients with multiple pterygium syndrome (Chong et al, 2015), and spondylocarpotarsal synostosis syndrome, which is associated with vertebral, carpal, and tarsal fusions in addition to joint contractures (Carapito et al, 2016; Zieba et al, 2017; Cameron‐Christie et al, 2018).