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Meningioma with ring enhancement on MRI: a rare case report
Miao Wang1, Zhongke Wang1, Peng Ren1
1Department of Neurosurgery, Xinqiao Hospital, Army Medical University, 400037, Chongqing, China.
Background:
Meningiomas 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 Presentation:
We report a 50-year-old female patient with a pathologically diagnosed fibrous meningioma (World Health Organization grade I) that exhibited ring enhancement on MRI.
Conclusions:
Meningiomas 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.
Insights
Meningiomas, a type of brain tumor, can rarely show ring enhancement on MRI scans. This case highlights an atypical presentation of a fibrous meningioma, prompting further research into tumor imaging characteristics.
Area of Science:
- Neuropathology
- Neuroradiology
- Oncology
Background:
- Meningiomas are typically diagnosed via MRI, appearing iso- to hypointense on T1 and iso- to hyperintense on T2 weighted images.
- Contrast administration usually reveals homogeneous enhancement and a dural tail in typical meningiomas.
- Atypical imaging findings in meningiomas can lead to misdiagnosis.
Observation:
- A 50-year-old female patient presented with a pathologically confirmed fibrous meningioma (WHO grade I).
- The meningioma exhibited an unusual ring enhancement pattern on magnetic resonance imaging (MRI).
Findings:
- Meningiomas can rarely present with ring enhancement on MRI, deviating from typical enhancement patterns.
- This case underscores the variability in meningioma imaging presentation.
Implications:
- Further research is needed to understand the natural history and mechanisms of cystic degeneration and enhancement in diverse meningioma subtypes.
- Recognizing atypical MRI findings like ring enhancement is crucial for accurate meningioma diagnosis and management.
