In 2011, Maydan et al. described that MCAHS is an autosomal recessive disorder characterised by neonatal hypotonia, lack of psychomotor development, seizures, dysmorphic features, and variable congenital anomalies involving the cardiac, urinary, and gastrointestinal systems, and they first stated that this disorder is caused by a homozygous variant in PIGN [9]. The gene discussed is PIGN; the disease is multiple congenital anomalies/dysmorphic syndrome.