X-linked hydrocephalus.
D002648:Child; D002675:Child, Preschool; D002874:Chromosome Mapping; D003376:Counseling; D006801:Humans; D006849:Hydrocephalus / Q000235:genetics*; D007231:Infant, Newborn; D008297:Male; D010375:Pedigree; D012730:Sex Chromosomes