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Cerebral astroblastoma resembling an extra-axial neoplasm
N Yunten1, Y Ersahin, E Demirtas
1Department of Radiology, Ege University School of Medicine, Bornova, Izmir, Turkey.
Summary
Cerebral astroblastoma can mimic extra-axial tumors on MRI, presenting with calvarial erosion and cortical buckling. This rare brain tumor requires inclusion in the differential diagnosis for superficially located masses, especially in young patients.
Area of Science:
- Neuro-oncology
- Neuroradiology
Background:
- Cerebral astroblastomas are rare primary brain tumors.
- Accurate preoperative diagnosis is crucial for effective treatment planning.
Observation:
- A case presented with Magnetic Resonance (MR) imaging findings suggestive of an extra-axial neoplasm.
- Key MR findings included calvarial erosion and cerebral cortex buckling by a peripherally located, well-circumscribed, highly enhancing mass.
Findings:
- Surgical and histopathological analysis confirmed the lesion to be an intracerebral astroblastoma, not extra-axial.
- The imaging characteristics mimicked those typically seen in meningiomas or other extra-axial tumors.
Implications:
- Astroblastoma should be considered in the differential diagnosis for superficially located intracranial masses with extra-axial features on MR imaging.
- This case highlights the importance of considering intra-axial differentials even when imaging suggests an extra-axial origin, particularly in pediatric and young adult populations.