Abstract
BackgroundMeningiomas typically manifest on magnetic resonance imaging (MRI) as iso- to hypointense on T1-weighted imaging and iso- to hyperintense on T2-weighted imaging. After contrast administration, they usually homogeneously enhance and exhibit a visible dural tail. Meningiomas with atypical findings may be misdiagnosed.Case presentationWe report a 50-year-old female patient with a pathologically diagnosed fibrous meningioma (World Health Organization grade I) that exhibited ring enhancement on MRI.ConclusionsMeningiomas may rarely present with ring enhancement on MRI. The natural history and mechanisms of cystic degeneration and enhancement in the various types of meningioma require further study.
Highlights
Meningiomas typically manifest on magnetic resonance imaging (MRI) as iso- to hypointense on T1-weighted imaging and iso- to hyperintense on T2-weighted imaging
Meningiomas may rarely present with ring enhancement on MRI
The preoperative diagnosis of meningioma mainly depends on computed tomography (CT) or magnetic resonance imaging (MRI)
Summary
Meningiomas typically manifest on magnetic resonance imaging (MRI) as iso- to hypointense on T1-weighted imaging and iso- to hyperintense on T2-weighted imaging. Conclusions: Meningiomas may rarely present with ring enhancement on MRI. The preoperative diagnosis of meningioma mainly depends on computed tomography (CT) or magnetic resonance imaging (MRI). On MRI, meningiomas typically appear iso- to hypointense on T1-weighted imaging (T1WI) and iso- to hyperintense on T2-weighted imaging (T2WI).
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