Unusual fetal arthrogryposis on ultrasound should draw attention to look for additional lower limb anomalies. Precise genetic counseling may be obtained from deletion on Xq11.2 as for gene sequencing diagnostic for Wieacker-Wolff syndrome.
Deneufbourg, C., Duquenne, A., Biard, J.-M., & Sznajer, Y. (2021). Wieacker-Wolff syndrome, a distinctive phenotype of arthrogryposis multiplex congenita caused by a “de novo” gene partial deletion. Clinical Case Reports, 9(9), e04718. https://doi.org/10.1002/ccr3.4718 (Original work published 2021)