Cutis Laxa, Autosomal Recessive, Type Ib, also known as cutis laxa, autosomal recessive, type 1b, is related to cutis laxa and efemp2-related cutis laxa. An important gene associated with Cutis Laxa, Autosomal Recessive, Type Ib is EFEMP2 (EGF Containing Fibulin Extracellular Matrix Protein 2), and among its related pathways/superpathways are Extracellular matrix organization and Elastic fibre formation. Affiliated tissues include skin and brain, and related phenotypes are depressed nasal bridge and microcephaly