Description : The 3M syndrome is characterized by poor postnatal growth and distinctive facial features,
including triangular facies, frontal bossing, fleshy tipped nose, and fleshy lips.
Other features may include skeletal anomalies and prominent heels (summary by Hanson
et al., 2011). For a general phenotypic description and a discussion of genetic heterogeneity
of 3M syndrome, see 3M1 (273750).;
Inheritance : Autosomal recessive;
Molecular basis : Caused by mutation in the coiled-coil domain-containing protein 8 gene (CCDC8, 614145.0001);