“…In our case, the discrepancy may also be a function of developmental age, as most of the manifestations of OFDS VI have been described in children rather than immature fetuses, and fetal phenotypes may be different from those found in term infants [Baldwin et al, 1982]. Many manifestations of OFDS VI also overlap with other OFDS and other midline malformation complexes, including OFDS I (Mohr syndrome) [Camera et al, 1994], Pallister Hall syndrome [Bankier et al, 1994;Muenke et al, 1991], hydrolethalus syndrome [Muenke et al, 1991] and Opitz trigonocephaly (or C) syndrome [Cleper et al, 1993]. Transitional cases similar to those with short-rib polydactyly syndromes have also been reported [Franceschini et al, 1995], which have led some authors to propose a broader categorization of all of these syndromes under the rubic ''oral-facial-skeletal (OFS) syndromes'' [Neri et al, 1995].…”