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Intraparenchymal Meningioma.

Raul Ramirez-Grueso¹, Sergio I Patino-Ladino¹, Jorge A Amortegui-Beltran¹

¹Department of Neurosurgery, Universidad Nacional de Colombia, USS Tunal, Bogota, Colombia.

Journal of Medical Cases

|August 26, 2021

Summary

This summary is machine-generated.

Intraparenchymal meningiomas, rare brain tumors, can mimic metastasis on CT scans. Early inclusion in differential diagnosis is crucial for accurate radiological assessment and patient management.

Keywords:

Intra-axial meningioma Intraparenchymal meningioma Meningioma

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Area of Science:

Neurology
Neurosurgery
Radiology

Background:

Meningiomas are typically extra-axial tumors, with most being benign World Health Organization (WHO) grade I.
Atypical locations, such as subcortical intra-axial meningiomas, pose diagnostic challenges.
These lesions can be misdiagnosed as metastasis or vascular malformations.

Observation:

A case report details a healthy patient with traumatic brain injury but no traumatic lesions.
Computed tomography (CT) revealed a left frontal subcortical lesion with significant vasogenic edema.
Initial diagnosis suggested a metastasis tumor due to the lesion's appearance.

Findings:

Surgical exploration revealed a tumor consistent with meningioma.
Histological analysis confirmed the diagnosis of meningioma.
Literature review highlights the importance of considering intraparenchymal meningiomas in differential diagnoses.

Implications:

Radiologists and clinicians should consider intraparenchymal meningiomas in the differential diagnosis of subcortical brain lesions.
Accurate radiological interpretation is vital for appropriate patient management and surgical planning.
This case underscores the need for a broad differential diagnosis in neuroimaging, especially for atypical tumor presentations.