chromosome 1p36.33 duplication syndrome [DOID:0070470]
A chromosomal duplication syndrome characterized by cardiomyopathy, corneal clouding or cataracts, hyperlactacidemia, and perinatal death that has_material_basis_in heterozygous duplication within the ATAD3 gene cluster, including the ATAD3A, ATAD3B, and ATAD3C genes, on chromosome 1p36.33 resulting in ATAD3A/ATAD3C gene fusion. Hypotonia, encephalopathy, seizures, and white matter abnormalities are also common.