Objective: Our aim was to present a prenatally diagnosed case with Robinow syndrome in a consanguineous couple and discuss possible differential diagnosis in view of the literature.
Methods: A 28-year-old pregnant woman gravida 2 para 1 was referred to the obstetric clinic of Kahramanmaras Sutcu Imam University presenting with a fetus having shortened upper and lower limbs at 33 weeks of gestation. Her medical history was unremarkable except for consanguinity. Prenatal ultrasonographic examination revealed a reduced humerus and femur length. Further, shortening of the forearm, frontal bossing, mild hypertelorism, reduced thoracic perimeter and hemivertebrae at the thoracic level were present.
Results: Meticulous neonatal examination was performed following an uncomplicated vaginal delivery at 39 weeks of gestation. Distinct facial appearance in addition to the prenatal findings argued in favor of the diagnosis of Robinow syndrome. Additionally, radiological survey revealed and confirmed shortening of the upper extremities and thoracic hemivertebrae.
Conclusion: We are documenting the case on the account of its rarity and additional features. The main approach in the differential diagnosis of Robinow syndrome should determine whether hemivertebrae is isolated or part of a syndrome or association.
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http://dx.doi.org/10.1159/000092471 | DOI Listing |
Prenat Diagn
August 2024
Division of Medical Genetics, Stanford University Department of Pediatrics, Stanford, California, USA.
Due to abnormal prenatal ultrasound findings of femoral shortening and flattened facial profile, a G2P0 pregnant patient underwent an amniocentesis at 15 weeks of gestation for proband-only exome sequencing. Bioinformatic filtering for genes included on the laboratory's extended skeletal dysplasia panel identified a heterozygous, likely pathogenic, frameshift variant in DVL1 NM_001330311.2:c.
View Article and Find Full Text PDFDis Model Mech
June 2024
Life Sciences Institute and Faculty of Dentistry, University of British Columbia, Vancouver, BC V6T 1Z3, Canada.
Robinow syndrome is a rare disease caused by variants of seven WNT pathway genes. Craniofacial features include widening of the nasal bridge and jaw hypoplasia. We used the chicken embryo to test whether two missense human FZD2 variants (1301G>T, p.
View Article and Find Full Text PDFAdv Exp Med Biol
June 2024
Cardiovascular Genetics, Charité - Universitätsmedizin Berlin, Berlin, Germany.
Elife
May 2024
Department of Cell Biology and Human Anatomy, University of California, Davis School of Medicine, Davis, United States.
The receptor tyrosine kinase ROR2 mediates noncanonical WNT5A signaling to orchestrate tissue morphogenetic processes, and dysfunction of the pathway causes Robinow syndrome, brachydactyly B, and metastatic diseases. The domain(s) and mechanisms required for ROR2 function, however, remain unclear. We solved the crystal structure of the extracellular cysteine-rich (CRD) and Kringle (Kr) domains of ROR2 and found that, unlike other CRDs, the ROR2 CRD lacks the signature hydrophobic pocket that binds lipids/lipid-modified proteins, such as WNTs, suggesting a novel mechanism of ligand reception.
View Article and Find Full Text PDFPrenat Diagn
May 2024
The Prenatal Diagnosis and Medical Genetics Program, Department of Obstetrics and Gynecology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada.
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