Meningioma en plaque A case report

Area of Science:

• Neurosurgery
• Neuropathology
• Oncology

Background:

• Meningiomas are the most common primary intracranial tumors, typically occurring in middle-aged to older adults and predominantly affecting females.
• While generally benign, meningiomas encompass a spectrum of histological subtypes, including atypical and malignant forms.
• The term 'meningioma' was coined by Harvey Cushing in 1922, though these tumors were recognized earlier.

Observation:

• Plaque meningioma describes a macroscopic appearance characterized by diffuse dural involvement and potential extracranial extension.
• This report presents a specific case of a plaque meningioma with a convex morphology.
• The presented case was classified as a typical WHO Grade I meningioma.

Findings:

• The case illustrates the characteristic diffuse dural infiltration of plaque meningiomas.
• Histopathological analysis confirmed the WHO Grade I classification, indicating a benign neoplastic process.
• The macroscopic features aligned with the definition of en plaque meningioma.

Implications:

• Understanding the distinct presentation of plaque meningiomas is crucial for accurate diagnosis and surgical planning.
• This case contributes to the literature on rare meningioma subtypes, aiding in the characterization of their behavior.
• Further research into en plaque meningiomas may elucidate specific treatment strategies and prognostic factors.