“…The patient in our case did not have an extensive web behind the knee, which is the typical feature of popliteal pterygium syndrome. van der Woude syndrome is also associated with intraoral synechiae and a cleft palate (Valnicek and Clarke, 1993; Denion et al, 2002; Puvabanditsin et al, 2003; Robbins et al, 2019). Both LS (Denion et al, 2002) and AS (Valnicek and Clarke, 1993; Denion et al, 2002; Puvabanditsin et al, 2003) have been reported as intraoral synechiae associated with this syndrome; however, our patient did not have pits on the lower lip that are typically observed in this syndrome.…”