Two cases of de novo deletion of the region distal to 11q23 were detec
ted at cordocentesis, following sonographic evidence of malformations.
Consistent findings in both fetuses were an abnormal amount of amniot
ic fluid, growth retardation, heart and renal defects. At delivery, th
e characteristic facial dysmorphisms of del(11q23) syndrome were also
detected, including trigonocephaly, hypertelorism, abnormal slant of p
alpebral fissures, micrognathia and abnormal ears.