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Korean J Pediatr 2012 March;55(3) :107-110.
A case of partial trisomy 3p syndrome with rare clinical manifestations
Dong Hoon Han (Han DH)1, Ji Young Chang (Chang JY)1, Woo In Lee (Lee WI)2, Chong Woo Bae (Bae CW)1
1Departments of Pediatrics, Kyung Hee University School of Medicine, Seoul, Korea
2Departments of Laboratory Medicine, Kyung Hee University School of Medicine, Seoul, Korea
Corresponding Author: Ji Young Chang ,Tel: +82-2-440-6270, Fax: +82-440-7175, Email:
Copyright © 2012 by The Korean Pediatric Society
Partial trisomy 3p results from either unbalanced translocation or de novo duplication. Common clinical features consist of dysmorphic facial features, congenital heart defects, psychomotor and mental retardation, abnormal muscle tone, and hypoplastic genitalia. In this paper, we report a case of partial trisomy 3p with rare clinical manifestations. A full-term, female newborn was transferred to our clinic. She had cleft lip-plate, dysgenesis of the corpus callosum, patent ductus arteriosus, pulmonary hypertension, and severe right-sided hydronephrosis, associated with ureteropelvic junction obstruction. Cytogenetic investigation revealed partial trisomy 3p; 46,XX,der(4)t(3;4) (p21.1;p16). The karyotype of her father showed a balanced translocation, t(3;4)(p21.1;p16). Therefore, the size of duplication can be an important factor.
Keywords: Partial trisomy 3p | Corpus callosum dysgenesis | Cleft lippalate | Unbalanced translocation
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