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Kyphomelic dysplasia in two sib fetuses
C P Chen1, S R Chern, S L Shih
1Department of Obstetrics and Gynaecology, Mackay Memorial Hospital, Taipei, Taiwan, Republic of China.
Journal of Medical Genetics
|February 25, 1998
Summary
Kyphomelic dysplasia, a skeletal disorder, was observed in male and female fetuses, suggesting a familial inheritance pattern. Prenatal ultrasound can aid in diagnosing this condition in future pregnancies.
Area of Science:
- Medical Genetics
- Skeletal Dysplasias
- Prenatal Diagnosis
Background:
- Kyphomelic dysplasia is a rare skeletal dysplasia characterized by severe bowing of long bones.
- Familial inheritance patterns are suggested but not well-established for kyphomelic dysplasia.
- Brachydactyly type E in the mother suggests a potential genetic link.
Observation:
- Two siblings, a male and a female, presented with features of kyphomelic dysplasia.
- In utero and postmortem radiographic findings included severe long bone bowing, short flared ribs, platyspondyly, and metaphyseal flaring.
- Prenatal ultrasound revealed symmetrical bowing and shortening of long bones and a narrow thorax.
Findings:
- The observed features in the fetuses are consistent with kyphomelic dysplasia.
- The familial occurrence in both sexes supports a hereditary basis for kyphomelic dysplasia.
- Normal karyotypes and external genitalia suggest non-chromosomal and non-syndromic inheritance.
Implications:
- These cases support a familial mode of inheritance for kyphomelic dysplasia in both males and females.
- Prenatal ultrasound is a valuable tool for detecting kyphomelic dysplasia during pregnancy.
- Genetic counseling and further research into the specific genes involved are warranted.