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Pediatr Dev Pathol. 2004 Jan-Feb;7(1):35-8.

Congenital diaphragmatic hernia and chromosomal anomalies: autopsy study.

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Department of Pathology, Lutheran General Hospital, 1775 Dempster Street, 5th Floor Surgical Building, Park Ridge, IL 60068, USA.


In a 10-year review of autopsy records from Lutheran General Hospital (1992-2002), 13 cases of congenital diaphragmatic hernia (CDH) were found. The fetuses ranged between 21 and 35 wk of gestation. Four were born alive and five were diagnosed prenatally. The defect was left-sided in 11 cases. Cytogenetic study revealed five cases with normal karyotype and three cases with complex karyotypes. In five cases, no karyotype was performed. The three complex karyotypes were: 46,XX,del(8)(p23.1), 47,XX, +i(12)(p10)[6]/46XX[14] (Pallister-Killian syndrome), and 47,XY,+der(22)t(11:22) (q23.3:q11.2). The unbalanced translocation of chromosomes 11 and 22 in congenital diaphragmatic hernia has not been previously described. Three fetuses had heart abnormalities, including one which was associated with the 8p deletion. The other two had no karyotype study. Neither in this study, nor in the literature, is there a consistent or prevailing association between a specific chromosomal anomaly and CDH. The embryologic closure of the diaphragmatic leaflets may be mediated by a nonstructural chromosomal defect, more than one gene, and/or may be related to abnormalities not currently detectable.

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