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  • Title: Proximal trisomy 13q and distal monosomy 8p in a dysmorphic and mentally retarded patient with an isodicentric chromosome 13q and a 13q/8p translocation chromosome.
    Author: Lukusa T, van den Berghe L, Smeets E, Fryns JP.
    Journal: Ann Genet; 1999; 42(4):215-20. PubMed ID: 10674161.
    Abstract:
    A 40 year-old dysmorphic and mentally retarded female is reported with a de novo unbalanced chromosomal rearrangement (karyotype: 46,XX,der(8)t(8;13)(p23;q123),idic(13)(pter-->q123: q123-->pter) resulting in an isodicentric chromosome 13 and a double aneusomy including partial trisomy 13 (13pter-q123) and distal monosomy 8p (8pter-p23). The main clinical findings consist of developmental/mental retardation, behavioural disturbances and minor congenital defects, not consistent with the clinical pattern of either of the two aneusomies. A mechanism for the chromosome rearrangement is proposed and the absence of specific physical findings in the present patient is discussed in the light of the available literature data.
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