RT Journal Article SR Electronic T1 Two sibs with microcephaly, hygroma colli, renal dysplasia, and cutaneous syndactyly: a new lethal MCA syndrome? JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 481 OP 484 DO 10.1136/jmg.36.6.481 VO 36 IS 6 A1 H C J P Janssen A1 C Schaap A1 N Vandevijver A1 P Moerman A1 C E M de Die-Smulders A1 J-P Fryns YR 1999 UL http://jmg.bmj.com/content/36/6/481.abstract AB We report two sibs of Turkish descent with multiple congenital anomalies including severe microcephaly, hygroma colli, cystic renal dysplasia, and bilateral cutaneous syndactyly of toes IV-V. In addition, the second sib presented with bilateral fusion of the eyelids, a bicornuate uterus, and clitoromegaly. The parents are first cousins, which suggests autosomal recessive inheritance. In reviewing previously published reports, several cases were found with cerebral, renal, and digital anomalies as the main features. Several of the additional symptoms present in the second sib were suggestive of Fraser syndrome, but the severe microcephaly in both sibs is unusual. The differential diagnosis is discussed, including the possibility of an entirely new entity in the broad spectrum of syndromes with cerebral, renal, and digital anomalies.