Related Experiment Video
Updated: Jul 11, 2026

Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
Published on: November 4, 2025
Perrault syndrome with Marfanoid habitus in two siblings
Jubbin J Jacob1, Thomas V Paul, Suma S Mathews
1Department of Endocrinology, Christian Medical College and Hospital, Vellore, India. jjacob@cmcvellore.ac.in
Background:
Familial pure gonadal dysgenesis with 46 XX karyotype and sensorineural deafness constitutes a rare autosomal recessive syndrome described initially by Perrault in 1951. The spectrum of the disease remains undetermined. Families with additional newer findings are regularly reported.
Case:
We report two siblings with gonadal dysgenesis, progressive sensorineural deafness, Marfanoid body proportions and skeletal features, and a normal female karyotype. The diagnosis of Perrault syndrome was made. Abnormal body proportions including a longer arm span, shorter trunk, high arched palate, long slender fingers and positive thumb and wrist sign were observed. The siblings did not have any cardiac or ocular features of Marfan's syndrome.
Conclusion:
The report of the siblings adds to the expanding spectrum of findings in Perrault syndrome.
More Related Videos
10:23Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans
Published on: September 8, 2023
08:22A Robust Polymerase Chain Reaction-based Assay for Quantifying Cytosine-guanine-guanine Trinucleotide Repeats in Fragile X Mental Retardation-1 Gene
Published on: September 16, 2019
Related Concept Videos
Pedigree Analysis
Sex-linked Disorders
Pleiotropy
Lethal Alleles
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
Genomic Imprinting and Inheritance
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
Nature and Nurture