RT Journal Article SR Electronic T1 Structural aberration of the X chromosome in a patient with gonadal dysgenesis: an approach to karyotype-phenotype correlation. JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 228 OP 231 DO 10.1136/jmg.18.3.228 VO 18 IS 3 A1 Varella-Garcia, M A1 Tajara, E H A1 Gagliardi, A R YR 1981 UL http://jmg.bmj.com/content/18/3/228.abstract AB An 18-year-old female with some stigmata of pure dysgenesis had a chromosome constitution of 46,X,dir dup(X) (pter leads to q27: :q21 leads to qter). The abnormal chromosome was always late replicating. The clinical and cytogenetic picture is compared with that of patients with X;X translocation and some problems of karyotype-phenotype correlation are discussed.