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A novel syndrome involving primary skeletal growth and retardation in siblings
F Hadziselimovic1, C H Fliegel, P Miny
1Department of Gastroenterology, Children's Hospital, University Clinics, Basel, Switzerland. nils@magnet.ch
Insights
Two brothers presented with a rare genetic disorder featuring microcephaly, developmental delay, and distinct limb malformations. This case suggests a potential new X-linked or autosomal recessive syndrome.
Area of Science:
- Genetics
- Pediatrics
- Clinical Dysmorphology
Background:
- Genetic disorders can manifest with complex patterns of congenital anomalies.
- Identifying novel syndromes is crucial for understanding inheritance patterns and providing accurate genetic counseling.
Observation:
- Two brothers exhibited an identical constellation of severe malformations.
- Key features included microcephaly, severe developmental delay, hypotelorism, epicanthic folds, convergent strabismus, limb shortening (radius/tibia), short first metacarpals, and long, dorsally flexed digits.
Findings:
- Both patients presented with high-pitched voices, inability to communicate verbally by 4.5 years, and short stature.
- Significant congenital heart defects (pulmonary atresia, VSD, ASD, overriding aorta) and anal atresia were noted in one brother each.
- The syndrome's inheritance pattern is hypothesized as autosomal or X-linked recessive.
Implications:
- This case highlights a potentially new genetic syndrome with significant multi-system involvement.
- Further research is needed to elucidate the specific genetic etiology and transmission patterns.
- Early identification and genetic testing are vital for affected families to understand prognosis and recurrence risks.
Abstract:
An identical pattern of malformations was found in two brothers both having microcephaly and severe developmental delay. Additionally, they had hypotelorism, epicanthic folds, and convergent strabismus. There was shortening of either the radius or the tibia and shortening of the first metacarpals. Persistently dorsally flexed fingers and toes were noted, all of which are unusually long. Both boys had a high-pitched voice and were unable to communicate verbally at the age of 4.5 years. They both developed short stature. One brother has anal atresia; the other had a pulmonary artery atresia, VSD, ASD, and an over-riding aorta. This apparently new syndrome is possibly an autosomal, or a X-linked recessive trait.