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Tuberous sclerosis complex: diagnostic challenges, presenting symptoms, and commonly missed signs
Brigid A Staley1, Emily A Vail, Elizabeth A Thiele
1Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts, USA.
Pediatrics
|December 22, 2010
Summary
Many tuberous sclerosis complex (TSC) patients present with subtle symptoms like seizures or skin changes that are often missed, delaying diagnosis. Early recognition of diverse TSC signs is crucial for better patient outcomes.
Area of Science:
- Medical Genetics
- Neurology
- Dermatology
Background:
- Tuberous sclerosis complex (TSC) is a genetic disorder with varied clinical manifestations.
- Delayed diagnosis of TSC can lead to increased morbidity and mortality.
Purpose of the Study:
- To characterize presenting symptoms and signs of TSC across different age groups.
- To identify early indicators of TSC that were not recognized, leading to diagnostic delays.
Main Methods:
- Retrospective chart review of 243 patients diagnosed with TSC.
- Analysis of presenting symptoms and signs versus those documented but not leading to immediate diagnosis.
Main Results:
- The average age of TSC diagnosis was 7.5 years, with 81% diagnosed before age 10.
- Common presenting signs included seizures, family history, cardiac rhabdomyomas, and hypopigmented macules.
- 39% of patients had "missed" symptoms, most frequently seizures and dermatologic findings.
Conclusions:
- Numerous TSC symptoms and signs can be overlooked, delaying diagnosis.
- Awareness of the wide spectrum of TSC manifestations is essential for clinicians.
- Prompt diagnosis of TSC is vital for reducing complications and improving prognosis.
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