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Tuberous sclerosis complex in children
Insights
Tuberous sclerosis (TS) is more common than previously thought, with seizures and intellectual disability being frequent in affected children. Early diagnosis through skin manifestations and CT scans is crucial for genetic counseling.
Area of Science:
- Medical Genetics
- Pediatric Neurology
- Dermatology
Background:
- Tuberous sclerosis (TS) is a genetic disorder with variable clinical manifestations.
- Early identification and management are essential for improving patient outcomes.
Purpose of the Study:
- To determine the prevalence and common clinical features of tuberous sclerosis in a pediatric cohort.
- To highlight the diagnostic utility of computed tomography (CT) and early cutaneous signs.
Main Methods:
- Retrospective review of 62 children diagnosed with tuberous sclerosis at The Hospital for Sick Children, Toronto.
- Clinical data collection including seizure history, intellectual development, and dermatological findings.
- Assessment of the role of computed tomography (CT) in diagnosis.
Main Results:
- Seizures occurred in 58 children (93.5%), with onset in the first year of life for 37 (64%).
- Mental retardation was diagnosed in 51 children (82.3%).
- Hypopigmented patches were present in 42 (67.7%) and adenoma sebaceum in 26 (41.9%).
Conclusions:
- Tuberous sclerosis (TS) is a prevalent condition with seizures and intellectual disability as common manifestations.
- Congenital hypopigmented patches are early cutaneous signs, and CT is vital for diagnosis.
- Family screening and genetic counseling are recommended upon TS diagnosis due to its wide spectrum of presentation.
Abstract:
Of 62 children seen at The Hospital for Sick Children, Toronto, who had tuberous sclerosis (TS), 58 had a history of seizures (developing during the first year of life in 37) and mental retardation was diagnosed in 51. Classic congenital hypopigmented patches were present in 42 and adenoma sebaceum occurred in 26 of the patients. Computed tomography (CT) is an essential diagnostic tool. We conclude that TS is more common than has been believed. Seizures are the most common manifestation of the disease and the hypopigmented patches, its first cutaneous manifestation, are present at an early age. When a positive diagnosis has been made, parents and siblings should be examined for signs of TS, keeping in the mind the wide spectrum of findings in this condition; if not stigmata are present on examination, then a CT scan should be considered for parents of reproductive age so that proper genetic counseling can be given.