Case report: congenital intraventricular meningioma demonstrated with fetal MRI

Area of Science:

• Neuro-oncology
• Pediatric Radiology
• Fetal Medicine

Background:

• Congenital intracranial meningiomas are exceptionally rare tumors.
• Intraventricular meningiomas are more frequently observed in pediatric populations compared to adults.

Observation:

• A case of congenital intraventricular cystic meningioma was identified and characterized using fetal magnetic resonance imaging (MRI).
• This represents the first in vivo description of a congenital meningioma visualized with fetal MRI.
• Fetal MRI successfully differentiated the intraventricular mass from choroid plexus neoplasms by demonstrating its separation from the choroid plexus.

Findings:

• The fetal MRI provided detailed characterization of the atypical intraventricular mass.
• Histopathology confirmed the diagnosis postnatally.
• The lesion's intraventricular location was noted, aligning with pediatric prevalence.

Implications:

• Meningioma should be included in the differential diagnosis for congenital intraventricular lesions detected prenatally.
• Fetal MRI is a valuable tool for the in vivo characterization and diagnosis of congenital intracranial masses.
• Early and accurate diagnosis via fetal MRI can guide appropriate management strategies for affected infants.