G syndrome: report of two cases.

This report concerns two cases of G syndrome in male neonates with hypertelorism, hypospadias and hoarse/voiceless cry. Case 1 had a positive family history; all similarly affected relatives have apparent hypertelorism. Case 2 seemed to represent a new mutation, since the parents are apparently normal, and the family history was non-contributory. The clinical expression of Case 1 was relatively severe and needed further surgical management, such as imperforate anus, hypospadias, and vesicoureteral reflux. Case 2 had two manifestations not previously reported: hypoplasia of cerebellum and web neck.