Dural masses: meningiomas and their mimics

Area of Science:

• Neurology
• Radiology
• Oncology

Background:

• Meningiomas are the most common primary tumors of the dura mater.
• Incidental findings on brain imaging are common, often leading to conservative management.
• Dural masses can mimic meningiomas, including metastases, granulomatous diseases, and infections.

Purpose of the Study:

• To review key imaging findings of common meningioma mimics.
• To highlight differentiating features between meningiomas and other dural masses.
• To emphasize the importance of accurate diagnosis for patient prognosis and management.

Main Methods:

• Review of imaging findings for various dural masses.
• Comparison of standard and advanced imaging techniques.
• Identification of characteristic features for differential diagnosis.

Main Results:

• Key features suggesting meningioma include intralesional calcifications, skull hyperostosis, and specific enhancement patterns.
• Metastases and tuberculosis are frequent mimics with distinct imaging characteristics.
• Awareness of these mimics and their imaging findings is essential.

Conclusions:

• Accurate differentiation of dural masses from meningiomas is critical.
• Imaging plays a pivotal role in guiding management strategies.
• Understanding mimics improves diagnostic accuracy and patient outcomes.