Cerebrooculofacioskeletal syndrome-4 (COFS4) is a severe autosomal recessive disorder characterized by growth retardation, dysmorphic facial features, arthrogryposis, and neurologic abnormalities. Cellular studies show a defect in both transcription-coupled and global genome nucleotide excision repair (TC-NER and GG-NER) (summary by Jaspers et al., 2007 and Kashiyama et al., 2013). For a discussion of genetic heterogeneity of cerebrooculofacioskeletal syndrome, see 214150.

Seckel syndrome is a rare autosomal recessive disorder characterized by severe pre- and postnatal growth retardation, severe microcephaly with mental retardation, and specific dysmorphic features (Faivre et al., 2002). For a general description and a discussion of genetic heterogeneity of Seckel syndrome, see 210600.