Intracerebral malignant schwannoma

Area of Science:

• Neuro-oncology
• Pathology
• Neurosurgery

Background:

• Intracerebral schwannomas are rare primary brain tumors.
• Previously reported intracerebral schwannomas have predominantly been benign, with rare semi-malignant cases.

Observation:

• A 15-year-old male presented with a highly malignant primary intracerebral schwannoma.
• Histological, ultrastructural, and immunocytochemical analyses revealed features of a partly epithelioid schwannoma.

Findings:

• This case represents the first documented instance of a highly malignant intracerebral schwannoma.
• The tumor's epithelioid nature distinguishes it from previously described benign and semi-malignant intracerebral schwannomas.

Implications:

• Highlights the potential for high-grade malignancy in intracerebral schwannomas.
• Underscores the importance of comprehensive histopathological and immunocytochemical evaluation for accurate diagnosis and treatment planning.
• May necessitate revised treatment strategies for malignant variants of this rare tumor.