Hmz: Homozygous, Htz: heterozygous, C.Htz: compound heterozygous, +: yes, -: no, nomenclature according to the guidance issued by the Human Genome Variation Society (http://www.hgvs.org/) assessed on
3MC syndrome is an autosomal recessive heterogeneous disorder with features linked to developmental abnormalities. The main features include facial dysmorphism, craniosynostosis and cleft lip/palate;
