We describe a five-year-old proband presented with Dandy-Walker malformations, right microopthalmia, hamstring contractures, undescended testis with absence of testis in right scrotum in addition to typical trisomy 9p clinical features. Routine cytogenetic studies with GTG - banding showed 46,XY,der(12)t(9;12) (p12;q13.3),mat karyotype (trisomy 9p). Chromosomal analysis of the father was normal and phenotypically normal mother had 46,XX,t(9;12)(p12;q13) karyotype. Fluorescence in situ hybridization analysis with single copy probes bA5OIA2 (9p11.2), bA562M8 (12p12.1) and centromere probes (9) showed break point at 9p12.1 region. The gene dosage effect of Chromosome 9p along with environmental factors might be associated with Dandy- Walker malformations in the patient.
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http://dx.doi.org/10.4103/0971-6866.32033 | DOI Listing |
J Int Med Res
January 2025
Department of Cardiac Surgery, The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou, Gansu, China.
Smith-Magenis syndrome (SMS) and Dandy-Walker malformation (DWM) are uncommon genetic conditions with nonspecific clinical features, which makes reaching a definitive diagnosis challenging. We describe here, a 2-year-old girl who was diagnosed with SMS at the age of 12 months due to delayed growth and development. The child presented to hospital with acute heart failure and respiratory failure.
View Article and Find Full Text PDFZhonghua Yi Xue Yi Chuan Xue Za Zhi
January 2025
Department of Obstetrics and Gynecology, the Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, China.
Objective: To explore the genetic characteristics of a Chinese pedigree with rare mosaic 11q partial duplication and its pathogenetic mechanisms.
Methods: A pedigree which underwent prenatal diagnosis at Wenzhou Central Hospital between September 25, 2015 and November 30, 2023 was selected for the study. Clinical data were collected from the pedigree.
Ann Med Surg (Lond)
December 2024
Department of Neurosurgery, Hannover Medical School, Hannover, Germany.
Introduction: Dandy-Walker syndrome (DWS), a complex neurodevelopmental disorder, has intrigued clinicians and researchers since its description by physicians Walter Dandy and Arthur Walker. Despite its recognition for nearly a century, understanding its etiology, pathogenesis, and clinical manifestations remains elusive. This bibliometric analysis aims to elucidate influential academic works on DWS.
View Article and Find Full Text PDFCureus
October 2024
Department of Radiodiagnosis, Sawai Man Singh (SMS) Medical College, Jaipur, IND.
Goldston syndrome (GS) is an extremely rare syndrome involving the central nervous system and kidneys. It is believed to have a familial association and an autosomal recessive inheritance and is characterized by the concomitant occurrence of cystic dysplastic kidneys and Dandy-Walker malformation. We report a case of antenatally detected GS at 22 weeks of gestation in a female with a consanguineous marriage.
View Article and Find Full Text PDFBrain Commun
November 2024
CHU Sainte-Justine Azrieli Research Centre, Montreal H3T 1C5, Canada.
Hydrocephalus and Dandy-Walker malformation are amongst the most common congenital brain anomalies. We identified three consanguineous families with both obstructive hydrocephalus and Dandy-Walker malformation. To understand the molecular basis of these anomalies, we conducted genome-wide sequencing in these families.
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