1983•Southern Medical JournalRequires access

Isodicentric X Chromosome in a Girl With Gonadal Dysgenesis

Vanessa M. Barnabei, Thomas A. Wilson, Ann J. Johanson, H.E. Wyandt, Thaddeus E Kelly

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Abstract

Chromosomal analysis on a 15-year-old girl with amenorrhea and lack of secondary sexual development showed a normal X chromosome and an isodicentric X chromosome, 46,X, idic(x) (pter leads to q23::q23 leads to pter). Thus the patient has duplicated and deleted X chromosome material. There was no evidence of 45,X mosaicism. Brd U-labeling revealed the abnormal X to be late-replicating.

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What this paper is about

Chromosomal analysis on a 15-year-old girl with amenorrhea and lack of secondary sexual development showed a normal X chromosome and an isodicentric X chromosome, 46,X, idic(x) (pter leads to q23::q23 leads to pter). Thus the patient has duplicated and deleted X chromosome material. There was no evidence of 45,X mosaicism. Brd U-labeling revealed the abnormal X to be late-replicating.

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Available abstract

Chromosomal analysis on a 15-year-old girl with amenorrhea and lack of secondary sexual development showed a normal X chromosome and an isodicentric X chromosome, 46,X, idic(x) (pter leads to q23::q23 leads to pter). Thus the patient has duplicated and deleted X chromosome material. There was no evidence of 45,X mosaicism. Brd U-labeling revealed the abnormal X to be late-replicating.

Key concepts: Gonadal dysgenesis, X chromosome, Girl, Chromosome, Amenorrhea, Medicine, Y chromosome, Chromosome analysis

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