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A new case of partial trisomy 16q (CROSBI ID 490874)

Prilog sa skupa u časopisu | sažetak izlaganja sa skupa | međunarodna recenzija

Petković, Iskra ; Barišić, Ingeborg ; Morožin, Leona A new case of partial trisomy 16q // European journal of human genetics. 2003. str. 124-124

Podaci o odgovornosti

Petković, Iskra ; Barišić, Ingeborg ; Morožin, Leona

engleski

A new case of partial trisomy 16q

Trisomy 16q is a rare condition in liveborn infants. Some 28 cases have been reported and most cases are due to unbalanced translocation. Clinical presentation is not well defined bacause it is usually associated with loss or gain of an other chromosome involved in the rearangement, while duplications are quite rare. In this report we present the results of clinical and cytogenetic investigation in 10-years-old girl. Clinical examination showed dysmorphic traits, including hypoplastic supraorbital ridges, epicanthus, dysplastic, low-set ears, full cheeks, thin lips, micrognathia. Her somatic and intellectual development were within normal range, although she experienced learning difficulties, mostly due to behavioural problems, aggressiveness and disobedience. Cytogenetic analysis was performed on peripheral blood culture of the patient and her parents. Both parents presented with normal karyotype, while cytogenetic analysis in the proband identified an extra GTG-positive band in the long arm of chromosome 16. FISH with chromosome 16 painting probe stained the aberrant chromosome completely. Analysis thus suggested the duplication of the long arm of chromosome 16, most probably involving 16q13-q22 region. It has been proposed that the duplication of the distal long arm segment may cause typical features of trisomy 16q, including short survival. On the other hand, the comparison of our patient to other reported cases revealed that trisomy for the proximal segment of the long arm of chromsome 16 may be associated with mild clinical presentation and behavioural problems as a major manifestation.

partial trisomy 16q; dup 16q; behavioural distrubances

nije evidentirano

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Podaci o prilogu

124-124.

2003.

nije evidentirano

objavljeno

Podaci o matičnoj publikaciji

European journal of human genetics

1018-4813

Podaci o skupu

European Human Genetics Conference

poster

03.05.2003-06.05.2003

Birmingham, Ujedinjeno Kraljevstvo

Povezanost rada

Kliničke medicinske znanosti

Indeksiranost