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Imaging Features and Pathological Correlation in Mixed Microcystic and Angiomatous Meningioma: A Case Report
Abstract:
Meningiomas are the most common intracranial tumors. However, microcystic and angiomatous meningiomas are very rare subtypes that present unusual imaging findings. Hence, radiological diagnosis of these tumors can be challenging. We herein describe a case of mixed angiomatous and microcystic meningioma in an 81-year-old male. MRI revealed an extra-axial mass with high T2 signal intensity, measuring 1.5 cm in diameter, with multiple tiny intralesional cysts and entrapped peritumoral cyst formation. After tumor resection, a histopathological diagnosis of mixed angiomatous and microcystic meningioma was made.
Insights
This case study highlights a rare mixed angiomatous and microcystic meningioma, a challenging diagnosis due to unusual MRI findings. Surgical resection confirmed the rare tumor subtype.
Area of Science:
- Neuro-oncology
- Radiology
- Pathology
Background:
- Meningiomas are the most common primary intracranial tumors.
- Microcystic and angiomatous meningiomas are rare subtypes with atypical imaging characteristics.
- Accurate radiological diagnosis of these rare meningiomas can be difficult.
Observation:
- A case of an 81-year-old male with a mixed angiomatous and microcystic meningioma is presented.
- MRI revealed a 1.5 cm extra-axial mass with high T2 signal intensity.
- The mass exhibited multiple tiny intralesional cysts and entrapped peritumoral cysts.
Findings:
- Histopathological examination after surgical resection confirmed the diagnosis.
- The tumor was identified as a mixed angiomatous and microcystic meningioma.
- This subtype presents unique diagnostic challenges in neuroradiology.
Implications:
- Understanding rare meningioma subtypes is crucial for accurate diagnosis.
- Advanced imaging techniques and histopathology are essential for definitive diagnosis.
- This case contributes to the literature on rare intracranial tumors and their management.
