RGD uses the Human Disease Ontology (DO, https://disease-ontology.org/) for disease curation across species. RGD automatically downloads each new release of the ontology on a monthly basis. Some additional terms which are required for RGD's curation purposes but are not currently covered in the official version of DO have been added. As corresponding terms are added to DO, these custom terms are retired and the DO terms substituted in existing annotations and subsequently used for curation.
An autosomal recessive congenital ichthyosis characterized by severe neonatal ichthyosis with bilateral ectropion and eclabium, flattened and rudimentary nose and ears, constricting bands around the extremities and frequently lethality during infancy that has_material_basis_in homozygous or compound heterozygous mutation in the ABCA12 gene on chromosome 2q35. (DO)
Synonyms:
exact_synonym:
ARCI4B; HI; ICHTHYOSIS, CONGENITAL, AUTOSOMAL RECESSIVE 4B (HARLEQUIN); harlequin baby syndrome; harlequin fetus; harlequin ichthyoses; harlequin ichthyosis; harlequin type ichthyosis; harlequin type ichthyosis congenita; harlequin type ichthyosis fetalis; ichthyosis congenita, harlequin fetus type