A case of ring chromosome.
A girl with a G22 ring chromosome is described. There are few physical abnormalities, performance quotient is in the low normal range but verbal skills are much retarded.
D002869:Chromosome Aberrations; D002872:Chromosome Deletion; D002904:Chromosomes, Human, 21-22 and Y; D005260:Female; D006801:Humans; D007223:Infant; D008607:Intellectual Disability / Q000235:genetics