Miao Wang1, Zhongke Wang1, Peng Ren1, Xiaoqing Zhang1, Shiyong Liu2. 1. Department of Neurosurgery, Xinqiao Hospital, Army Medical University, 400037, Chongqing, China. 2. Department of Neurosurgery, Xinqiao Hospital, Army Medical University, 400037, Chongqing, China. liushi24252016@163.com.
Abstract
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.
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.
Entities:
Keywords:
Magnetic resonance imaging; Meningioma; Ring enhancement