MONDO_0016241 (alternating hemiplegia of childhood) is a rare neurodevelopmental disorder characterized by recurrent episodes of hemiplegia and paroxysmal disturbances associated with persistent developmental delay and cognitive impairment. Also known as: AHC, adrenal hypoplasia congenita, childhood alternating hemiplegia, congenital adrenal Hypoplasia, congenital adrenal gland hypoplasia, paediatric alternating hemiplegia, pediatric alternating hemiplegia.