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Oto-palato-digital syndrome, type II--an X-linked skeletal dysplasia
American Journal of Medical Genetics
|February 1, 1985
Insights
This study describes a lethal skeletal dysplasia in two male infants, presenting with specific facial and limb abnormalities. The condition resembles oto-palato-digital syndrome type II and appears to be X-linked.
Area of Science:
- Medical Genetics
- Skeletal Dysplasias
- Pediatric Radiology
Background:
- Oto-palato-digital syndrome type II is a rare genetic disorder.
- Skeletal dysplasias encompass a heterogeneous group of bone development disorders.
- Accurate diagnosis of rare genetic conditions is crucial for genetic counseling and management.
Observation:
- Two male infants presented with a lethal skeletal dysplasia.
- Key features included cleft palate, midface hypoplasia, downward-slanting palpebral fissures, small thorax, and bowed limbs with absent fibulae.
- Clinical and radiographic findings were consistent with oto-palato-digital syndrome type II.
Findings:
- The described skeletal dysplasia shares characteristics with oto-palato-digital syndrome type II.
- The disorder exhibits an X-linked inheritance pattern.
- Heterozygous females show milder manifestations of the condition.
Implications:
- This report expands the understanding of oto-palato-digital syndrome type II.
- It highlights the importance of recognizing specific phenotypic features for diagnosis.
- Further research into the genetic basis and molecular mechanisms is warranted for this X-linked dysplasia.
Abstract:
We report on two male infants with a lethal skeletal dysplasia characterized by cleft palate, midface hypoplasia, downward-slanting palpebral fissures, small thorax, and bowed limbs with absent fibulae. The clinical and radiographic changes are similar to those seen in the recently proposed oto-palato-digital syndrome, type II [Fitch et al, 1983]. The disorder is X-linked with heterozygous females being more mildly affected.