It is worth mentioning that FGFR2 is involved not only in the embryonic development of the metanephric urinary tract but also in that of the skeleton and skin, and mutations in the gene in humans can cause Crouzon syndrome, Pfeiffer syndrome, Apert syndrome, Jackson-Weiss syndrome, Beare-Stevenson cutis gyrata syndrome, or Saethre-Chotzen syndrome. The gene discussed is FGFR2; the disease is Jackson-Weiss syndrome.