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Objective: Prenatal diagnosis of fetal 13q34 microdeletion is a rare condition, which may present with abnormal fetal development, including facial dysmorphism, mental retardation, and developmental delay. We present a pregnant woman in whom the fetus presented with a 0.24-cm ventricular septal defect at 20 weeks of gestation, with fetal 13q34 (113610612-115092648) deletion.

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Objective: Prenatal detection of complex chromosomal rearrangements (CCR) is extremely rare, but is of great clinical importance, since CCR can be causative of different congenital disorders. We present an exceptionally rare case of prenatally diagnosed Saethre-Chotzen syndrome (SCS) rising as a consequence of chromothripsis involving chromosomes 5, 7 and 11 and deletion of TWIST1 gene.

Case Report: Brachycephaly, hypertelorism, flat face, micrognathia, relative macroglossia and small posterior fossa were noted on ultrasound examination at 28th gestational week.

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Prenatal diagnosis and molecular cytogenetic analyses of a rare 17q12 microduplication family.

Eur J Obstet Gynecol Reprod Biol

January 2025

Department of Clinical Laboratory, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, PR China. Electronic address:

Objective: To report a rare 17q12 microduplication family.

Case Report: A 29-year-old woman (gravida 1, para 0) underwent amniocentesis at 21 weeks' gestation because of double bubble sign and polyhydramnios of the fetus on prenatal ultrasound. Chromosomal microarray analysis (CMA) from this family revealed a 1.

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Introduction: 22q11 deletion syndrome (22q11DS) results from a microdeletion on chromosome 22 and is the most common microdeletion disorder in humans, affecting 1 in 2148 live births. Clinical manifestations vary widely among individuals and across different life stages. Effective management requires the involvement of a specialized multidisciplinary team.

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Objective: To explore the clinical phenotype, pregnancy outcome and follow-up of fetuses with 15q11.2BP1-BP2 microdeletions in order to provide a basis for prenatal and reproductive consultation.

Methods: From March 2019 to December 2023, 20 fetuses who were diagnosed with 15q11.

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