Related Experiment Videos
[Neonatal tuberous sclerosis: report of a case studied by cranial MRI]
J Takanashi1, K Sugita, H Horiguchi
1Department of Pediatrics, Chiba University School of Medicine.
Insights
Tuberous sclerosis in a neonate showed no cortical tubers on early MRI, but they appeared later. This suggests myelin development influences tuber visibility in infant brain imaging.
Area of Science:
- Neuroimaging
- Pediatric Neurology
- Developmental Neuroscience
Background:
- Tuberous sclerosis complex (TSC) is a genetic disorder causing benign tumors in multiple organs.
- Early-onset seizures are a common and serious manifestation in neonates with TSC.
- Cranial magnetic resonance imaging (MRI) is crucial for diagnosing and monitoring TSC-related brain abnormalities.
Observation:
- Longitudinal cranial MRI studies were performed on a neonate diagnosed with tuberous sclerosis.
- The neonate experienced convulsive seizures within the first day of life.
- Cortical tubers, characteristic lesions of TSC, were initially absent on MRI at 1 month of age.
Findings:
- Cortical tubers became evident on MRI scans at 18 months of age.
- The delayed detection of tubers may be attributed to age-related myelin accumulation around the lesions.
- A heterotopic islet presented a partially stratiform appearance, suggesting structural heterogeneity.
Implications:
- This case highlights the dynamic nature of neuroimaging findings in infantile tuberous sclerosis.
- Understanding myelin's role in tuber visualization can refine diagnostic timing and interpretation.
- Further research into heterotopic islet structure may improve understanding of cortical development in TSC.
Abstract:
We reported longitudinal cranial MRI studies of a neonate with tuberous sclerosis who presented convulsive seizures on the first day after birth. Cortical tubers were not detected on MRI performed at the age of 1 month, but became evident at 18 months after birth. This finding might reflect the pathological difference between the amount of myelin around the cortical tuber and other white matter lesions, which increased with age. A heterotopic islet was shown as partially stratiform appearance on MRI. This result suggests that the structure of the heterotopic islet might be heterogeneous.