Tectal plate lesions in children
Jessica Ternier1, Alison Wray, Stéphanie Puget
1Department of Pediatric Neurosurgery, Hôpital Necker-Enfants Malades, Paris, France.
Journal of Neurosurgery
|June 17, 2006
Summary
Pediatric tectal plate lesions require contrast-enhanced MRI and volume assessment. Lesion volume predicts progression, with smaller lesions (<4 cm3) often benign hamartomas and larger lesions (>10 cm3) typically tumors requiring treatment.
Area of Science:
- Pediatric Neurology
- Neuroradiology
- Pediatric Neurosurgery
Background:
- Tectal plate lesions in children can present with hydrocephalus.
- Differentiating benign hamartomas from tumors is clinically important.
Purpose of the Study:
- To characterize the clinical course of pediatric tectal plate lesions.
- To identify prognostic factors predicting lesion progression.
- To differentiate tectal hamartomas from tumors.
Main Methods:
- Retrospective review of pediatric tectal plate lesions (1984-2003).
- Analysis of lesion volume, clinical, and radiological features on magnetic resonance (MR) imaging.
- Correlation of presentation factors with clinical course and outcomes.
Main Results:
- Lesion volume at presentation was the only factor predicting tumor enlargement (p = 0.002).
- Subgroups based on volume (<4, 4-10, >10 cm3) correlated with clinical course.
- 39 of 40 patients remained stable; one died from high-grade astrocytoma.
Conclusions:
- Contrast-enhanced MR imaging and volume assessment are crucial for pediatric tectal lesions.
- Lesions <4 cm3 are likely hamartomas with benign courses.
- Lesions >10 cm3 are typically tumors requiring treatment; earlier intervention may improve outcomes.
