has material basis in germline mutation in L1CAM hereditary disease X-linked complicated corpus callosum dysgenesis https://github.com/monarch-initiative/mondo/issues/4521 https://www.malacards.org/card/corpus_callosum_partial_agenesis_of_x_linked icd11.foundation:1765391162 X-linked complicated corpus callosum dysgenesis is a historical term used to describe a phenotype now considered to be part of the L1 clinical spectrum (L1 syndrome). The disorder is characterized by variable spastic paraplegia, mild to moderate intellectual deficit, and dysplasia, hypoplasia or aplasia of the corpus callosum. corpus callosum, partial agenesis of, X-linked recessive corpus callosum, partial agenesis of, X-linked X-linked partial agenesis of corpus callosum UMLS:C1839909 MESH:C564115 Orphanet:1497 MONDO:0010569 GARD:0012526 X-linked partial corpus callosum agenesis OMIM:304100 MEDGEN:374339 X-linked complicated corpus callosum agenesis L1 syndrome