benign familial nocturnal alternating hemiplegia of childhood https://www.malacards.org/card/benign_nocturnal_alternating_hemiplegia_of_childhood Orphanet:209973 Benign nocturnal alternating hemiplegia of childhood is a rare neurologic disease characterized by recurrent attacks of nocturnal screaming or crying followed or accompanied by unilateral or sometimes bilateral hemiplegia. Disorder is not associated with neurological or developmental impairments but may be associated with mild behavioral abnormalities. UMLS:C4749822 icd11.foundation:447920235 MEDGEN:1668716 GARD:0020445 MONDO:0016209 benign familial nocturnal alternating hemiplegia in childhood alternating hemiplegia