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Genet Couns. 1999;10(4):351-8.

46,XX,der(2)t(2;10)(2pter-->2q37::10p13-->10pter)[127]/45,X,der(2)t(2;10) (2pter-->2q37::10p13-->10pter)[23]. Karyotype-phenotype correlation and genetic counselling in complex karyotypes.

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Cattedra di Genetica Medica, Università La Sapienza, Roma, Italia.


We describe a female child with complex cytogenetic anomalies consisting in partial trisomy of the short arm of chromosome 10, terminal deletion of the long arm of chromosome 2 and--at the same time--a mosaicism for X monosomy. To our knowledge, this is the first case reported in which 10p trisomy is associated to a 2qter deletion. Due to the scarcity of cases reported with pure trisomy, it has not been possible to define the 10p+ syndrome precisely yet. Comparison of our proband's phenotype to both the 2q37 deletion and 10p trisomy showed more features described in 2q37- subjects than in 10p+ ones. We also discuss the difficulties of genetic counseling in children with complex aberrations.

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