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DE NOVO 3q13.13q21.2 INTERSTITIAL DELETION AND PATERNAL 12p13.3 MICRODELETION IN A FETUS WITH DYSPLASIA OF THE CORPUS CALLOSUM AND VENTRICULOMEGALY

ABSTRACT: The 3q-syndrome is a well-known genetic condition caused by interstitial deletion in the long arm of chromosome 3. The phenotype of this syndrome is variable and the great variability in the extent of these deletions lead to a wide spectrum of clinical manifestations. Terminal 12p deletion represents one of the rarest subtelomeric imbalance, patients with distal monosomy 12p present different phenotypes ranging from muscular hypotonia to autism spectrum disorders. Here we report a prenatal diagnosis of a male fetus presenting ultrasounds evidence of corpus callosum dysplasia and ventriculomegaly showing a 3q13q21.2 deletion and a 12p13.33 microdeletion paternally inherited. Among several features previously attributed to the terminal deletion of 3q, corpus callosum dysplasia and ventriculomegaly has rarely been reported together. As the 12p13.33 microdeletion in the father was associated only to muscular hypotonia and joint laxity, involvement of terminal 12p deletions in fetus clinical features was not possible to verify in prenatal period. This report may provide a reference for prenatal diagnosis and genetic counseling in patients who have prenatal diagnosis of 3q13q21.2 deletions and 12p13.33 microdeletion.

ORGANISM(S): Homo sapiens

SUBMITTER: Marco Fabiani

PROVIDER: E-MTAB-12413 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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