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Supratentorial dorsal cistern epidermoid cyst in childhood
1Neurosurgical Clinic, University of Messina School of Medicine, Messina, Italy.citsal@eniware.it
Insights
Epidermoid cysts (ECs) are rare central nervous system lesions. This pediatric case highlights ECs as a potential cause of seizures in children, necessitating their inclusion in differential diagnoses.
Area of Science:
- Neurology
- Neurosurgery
- Pediatric Oncology
Background:
- Epidermoid cysts (ECs) are uncommon developmental lesions of the central nervous system (CNS).
- Supratentorial dorsal cistern ECs are exceptionally rare in pediatric patients, with only one prior reported case.
- This study presents an additional pediatric case of a supratentorial EC.
Observation:
- An 11-year-old boy presented with an 8-year history of petit mal seizures.
- Magnetic resonance imaging revealed a right frontal, parasagittal, intradural, extracerebral mass with characteristic signal intensities.
- The lesion was successfully removed via microneurosurgery.
Findings:
- Histopathological examination confirmed the diagnosis of an epidermoid cyst.
- The patient experienced significant seizure reduction post-surgery.
- No recurrence was observed during a 2-year follow-up period.
Implications:
- This case underscores the importance of considering epidermoid cysts in the differential diagnosis of pediatric intracranial masses.
- Early diagnosis and surgical management of ECs can lead to favorable outcomes, including seizure control.
- Highlights the need for increased awareness of rare CNS lesions in pediatric neurology and neurosurgery.
Abstract:
Epidermoid cysts (ECs) are rare developmental lesions occurring anywhere along the central nervous system. Usually affecting adult patients, the occurrence of supratentorial dorsal cistern ECs has been reported in only 1 certain case of pediatric age. An additional pediatric case is presented. An 11-year-old boy had an 8-year history of petit mal seizures. Neurologic examination on admission was negative. T1-weighted magnetic resonance images demonstrated homogenous, hypointense, intradural, extracerebral, right frontal, precentral, parasagittal mass with relatively high signal intensity on T2-weighted images. The lesion was completely removed using a microneurosurgical technique with special care taken with regard to the adjacent nervous and vascular structures. Histologically, an EC was diagnosed. The patient had no recurrence for 2 years and seizures were significantly reduced. This case suggests the need to include ECs in the differential diagnosis of intradural supratentorial extracerebral lesions in childhood.