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Slowly progressive macrocephaly with hamartomas: a new syndrome?
1Department of Medical Genetics, Montreal Children's Hospital, McGill University, Quebec, Canada.
Insights
This case study describes a rare genetic syndrome in a child presenting with macrocephaly and developmental delays. The condition, possibly an autosomal dominant trait, shares features with Bannayan-Zonana syndrome.
Area of Science:
- Genetics
- Pediatrics
- Dermatology
Background:
- Genetic syndromes can present with a complex array of physical and developmental anomalies.
- Understanding rare genetic disorders is crucial for accurate diagnosis and management.
Observation:
- An 8 1/2-year-old boy exhibited macrocephaly, psychomotor retardation, multiple angiolipomas, hypertelorism, exotropia, prolonged drooling, cutis marmorata, telangiectasia, congenital heart defect, broad digits, and muscle wasting.
- The patient's father displayed partial manifestations, suggesting a hereditary pattern.
Findings:
- The described syndrome shares similarities with Bannayan-Zonana syndrome.
- The inheritance pattern appears to be autosomal dominant.
Implications:
- This case expands the phenotypic spectrum of known genetic syndromes.
- Further research is needed to identify the specific gene responsible and elucidate the syndrome's pathogenesis.
- Recognition of this syndrome can aid in early diagnosis and genetic counseling for affected families.
Abstract:
We report on an 8 1/2-year-old boy with slowly progressive macrocephaly, psychomotor retardation, multiple subcutaneous angiolipomas, hypertelorism, exotropia, prolonged drooling, cutis marmorata, telangiectasia, congenital heart defect, broad thumbs and great toes, and muscle wasting. The syndrome is similar to the Bannayan-Zonana syndrome and seems to be inherited as an autosomal dominant trait. The father has partial manifestations of the syndrome.