Any autosomal recessive congenital ichthyosis in which the cause of the disease is a mutation in the ABCA12 gene. The disease is Monarch Disease Ontology identifier MONDO_0011026 (autosomal recessive congenital ichthyosis 4A). Also known as: ARCI4A, ICR2B, autosomal recessive congenital ichthyosis type 4A, ichthyosis congenita IIB, ichthyosis, congenital, autosomal recessive type 4A, lamellar ichthyosis 2.