IVIC syndrome

A syndrome characterized by radial ray defect of variable severity, mixed congenital hearing loss, mild thrombocytopenia, and external ophthalmoplegia that has_material_basis_in heterozygous mutation in the SALL4 gene on chromosome 20q13.2.

rapadilino syndrome

A syndrome that is characterized by radial ray defect, patellae hypoplasia, cleft palate, diarrhea, dislocated joints, limb malformations, long nose and normal intelligence, has_material_basis_in homozygous or compound heterozygous mutation in the DNA helicase gene RECQL4 on chromosome 8q24.

microcephaly, short stature, and limb abnormalities

An osteochondrodysplasia that is characterized by intrauterine growth retardation, microcephaly, variable short stature, and limb abnormalities mainly affecting the upper limb and radial ray and that has_material_basis_in homozygous or compound heterozygous mutation in the DONSON gene on chromosome 21q22. Biallelic mutation in the DONSON gene can also cause microcephaly-micromelia syndrome, a more severe disorder that usually results in intrauterine or perinatal death.

short stature, facial dysmorphism, and skeletal anomalies with or without cardiac anomalies 1

A syndrome characterized by distinctive facial features including midface retrusion, short upturned nose, long philtrum, high-arched or cleft palate, and variable degrees of micrognathia and dental crowding with keletal anomalies including patterning defects of the axial skeleton, characterized by 11 pairs of ribs and brachydactyly of the fifth ray that has_material_basis_in heterozygous mutation in the BMP2 gene on chromosome 20p12.

DNA ligase IV deficiency

A combined T cell and B cell immunodeficiency that has_material_basis_in a mutation in the LIG4 gene, a DNA ligase, encoding a protein essential for V(D)J recombination and DNA double-strand break (DSB) repair through nonhomologous end joining (NHEJ). Patients present with immunodeficiency and developmental and growth delay.