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Borgaonkar DS. Chromosomal Variation in Man: A Catalog of Chromosomal Variants and Anomalies: Online NLM Version [Internet]. Bethesda (MD): National Center for Biotechnology Information (US); 1975-.

Cover of Chromosomal Variation in Man

Chromosomal Variation in Man: A Catalog of Chromosomal Variants and Anomalies: Online NLM Version [Internet].

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20p1123

20p11.23
  • Anad F, Burn J, Matthews D, Cross I, Davison B C C, Mueller R, Sands M, Lillington D M, Eastham E: Alagille syndrome and deletion of 20p. J. Med. Genet. 27:729-737, 1990. [PMC free article: PMC1017275] [PubMed: 2074558]
    Case 1.
    46,XX,del(20)(p11.23 -> p13)de novo.
    Cases 4 and 5.
    46,XY,der del(20)(p11.23p12.2)mat.,46,XX,del(20)(p11.23p12.2).
    Five cases were reported, four had craniofacial, vertebral, ocular, and cardiovascular features.
    Aberration: TD,ID
    MIM#: 118450
    Chromosomal Aneuploidy: 20p-
    Negative band
  • Petersen M B: Rare chromosome 20 variants encountered during prenatal diagnosis. Prenat. Diag. 6:363-367, 1986. [PubMed: 3774765]
    A three generation family with six carrier individuals was reported.
    46,XX or XY, inv(20)(p11.23q11.21).
    Aberration: Inversion pericentric
    Negative band
  • Shohat M, Herman V, Melmed S, Neufeld N, Schreck R R, Pulst S, Graham J M, Jr, Rimoin D L, Korenberg J R: Deletion of 20p 11.23 to pter with normal growth hormone-releasing hormone genes. AJMG 39:56-63, 1991. [PubMed: 1867266]
    46,XX,del(20)(p11.23 -> pter)de novo.
    The patient had minor facial anomalies, Rieger eye anomaly, a congenital heart defect, severe failure to thrive, and a neurosecretory problem in growth hormone (GH) secretion.
    Also see Lalani et al (2009) cited under 20p12.3.
    Aberration: Terminal deletion
    Chromosomal Aneuploidy: 20p-
    Negative band
  • Zhang F, Deleuze J F, Aurias A, Dutrillaux A M, Hugon R N, Alagille D, Thomas G, Hadchouel M: Interstitial deletion of the short arm of chromosome 20 in arteriohepatic dysplasia (Alagille syndrome). J. Ped. 116:73-77, 1990. [PubMed: 1967307]
    46,XY,del(20)(p11.23 -> p12.3).
    Aberration: Interstitial deletion
    MIM#: 118450
    Chromosomal Aneuploidy: 20p-
    Negative band
Copyright © 2011-2013, Digamber Borgaonkar.
Bookshelf ID: NBK106719

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