SLC39A4 and acrodermatitis enteropathica: At the age of 18 months, genetic testing showed a homozygous missense variant in exon 3 of the SLC39A4 gene (chr8:g.144415295G<A; Depth: 154x) that resulted in an amino acid substitution of leucine for proline at codon 200 (p.Pro200Leu; ENST00000301305.8), confirming the diagnosis of AE.