Dural tail sign | Radiology Reference Article - Radiopaedia.org
2023年12月11日 · The dural tail sign occurs as a result of thickening and enhancement of the dura and is most often seen adjacent to a meningioma. Initially, the sign was felt to be pathognomonic of meningiomas, however, it has become increasingly noted to be present in many other conditions, although without the same regularity:
Meningioma | Radiology Reference Article | Radiopaedia.org
2024年11月28日 · Typical meningiomas appear as dural-based masses isointense to grey matter on both T1 and T2 weighted imaging, enhancing vividly on both MRI and CT. Some of the subtypes can vary dramatically in their imaging appearance.
Spinal meningioma | Radiology Reference Article - Radiopaedia.org
2024年10月4日 · broad-based dural attachment. dural tail sign (60-70%) ginkgo leaf sign in meningiomas arising lateral or ventrolateral to the spinal cord 14. They share similar signal characteristics to typical intracranial meningiomas: T1: isointense to slightly hypointense, possibly heterogeneous. T2: isointense to slightly hyperintense
Dural tail sign (mnemonic) | Radiology Reference Article
2019年2月18日 · A useful mnemonic to remember differential diagnoses associated with a dural tail sign is: My Scary Dog Likes To Stand Guard; Mnemonic. M: meningioma; S: sarcoidosis; D: dural metastases; L: lymphoma; T: tuberculoma; S: schwannoma; G: glioma
Dural metastases | Radiology Reference Article - Radiopaedia.org
2024年2月2日 · Dural metastases, also known as pachymeningeal metastases, are a relatively common cause of dural masses, although they are less common than brain metastases and meningiomas. They can occur both within the spine and intracranially - this article is focused on intracranial dural masses.
Dural masses | Radiology Reference Article - Radiopaedia.org
2021年11月23日 · Dural masses can be the result of a number of different tumors and conditions, although meningiomas are by far the most common. The differential of a dural mass includes: meningioma; solitary fibrous tumor of the dura (hemangiopericytoma) primary dural lymphoma; Rosai-Dorfman disease; primary intracranial leiomyosarcoma (EBV-associated smooth ...
Sunburst sign (meningioma) | Radiology Reference Article
2022年11月3日 · The sunburst sign refers to the characteristic vascular supply seen in some meningiomas when seen from the side (tangential to the dural attachment). It is the result of the same phenomenon which results in the spoke wheel pattern of vessels (viewed in cross-section, parallel to the dural attachment).
Meningeal hemangiopericytoma (historical) - Radiopaedia.org
2024年12月11日 · They often present as large and locally aggressive dural masses, frequently extending through the skull vault. They are difficult to distinguish on imaging from the far more common meningioma. Still, they are treated similarly with surgical resection with or without radiotherapy to reduce the risk of recurrence, which is high.
CSF cleft sign | Radiology Reference Article | Radiopaedia.org
2021年11月1日 · The CSF cleft sign in neuroimaging can be used to distinguish an extra-axial lesion from an intra-axial lesion and is typically used in the description of a meningioma. Classically, the cleft was regarded as representing a thin rim of …
Simpson grade of meningioma resection - Radiopaedia.org
2024年10月17日 · The Simpson grade of meningioma resection was described in 1957 and correlated the degree of surgical resection completeness with symptomatic recurrence 1.
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