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[Extra-axial chordoid meningioma: a case report]
Mohammed Guini1, Mohammed Khoulali1, Nabil Raouzi1
1Service de Neurochirurgie, Centre Hospitalier Universitaire Mohammed VI, Oujda, Maroc.
The Pan African Medical Journal
|April 29, 2021
Summary
A rare chordoid meningioma, a type of brain tumor, was incidentally discovered in a 45-year-old female. Surgical removal was successful, providing a complete diagnosis and treatment for this de novo lesion.
Area of Science:
- Neuro-oncology
- Neurosurgery
- Radiology
Background:
- Meningiomas are tumors that arise from the meninges, the membranes that surround the brain and spinal cord.
- Chordoid meningioma is a rare subtype, often associated with specific genetic alterations.
- De novo tumor development, or the spontaneous appearance of a new tumor, is a critical area of study.
Observation:
- A 45-year-old female presented with an incidentally discovered de novo lesion in the left pterional region.
- Initial brain CT revealed an isodense lesion with bone lysis and uniform enhancement post-contrast.
- MRI demonstrated characteristic signal intensities: T1 hypointense, T2/FLAIR hyperintense, with strong post-gadolinium enhancement.
Findings:
- Histopathological examination confirmed the lesion as a chordoid meningioma.
- The tumor exhibited aggressive features including bone lysis and uniform enhancement, suggesting potential for invasion.
- Complete tumor excision was achieved, allowing for definitive diagnosis.
Implications:
- This case highlights the importance of advanced imaging in detecting rare intracranial neoplasms.
- Understanding the imaging characteristics of chordoid meningioma is crucial for accurate diagnosis and surgical planning.
- Further research into de novo chordoid meningiomas may elucidate underlying tumorigenesis mechanisms and inform treatment strategies.
