Meningioma MRI: Difference between revisions
(→MRI) |
No edit summary |
||
Line 4: | Line 4: | ||
==Overview== | ==Overview== | ||
Brain [[MRI]] with [[gadolinium]] is the investigation of choice for the diagnosis of meningioma. On brain MRI, meningioma is characterized by a [[homogeneous]], well circumscribed, and extra-axial mass with a broad dural base. Other findings on brain MRI suggestive of meningioma include [[CSF]] [[vascular]] cleft sign, dural tail sign, and sunburst or spokewheel appearance of the [[vessel]]s.<ref name="raio">Meningioma. Radiopaedia(2015) http://radiopaedia.org/articles/meningioma Accessed on September, | Brain [[MRI]] with [[gadolinium]] is the investigation of choice for the diagnosis of meningioma. On brain MRI, meningioma is characterized by a [[homogeneous]], well circumscribed, and extra-axial mass with a broad dural base. Other findings on brain MRI suggestive of meningioma include [[CSF]] [[vascular]] cleft sign, dural tail sign, and sunburst or spokewheel appearance of the [[vessel]]s.<ref name="raio">Meningioma. Radiopaedia(2015) http://radiopaedia.org/articles/meningioma Accessed on September, 25 2015</ref> | ||
==MRI== | ==MRI== | ||
* Brain [[MRI]] with [[gadolinium]] is the investigation of choice for the diagnosis of meningioma.<ref name="raio">Meningioma. Radiopaedia(2015) http://radiopaedia.org/articles/meningioma Accessed on September, | * Brain [[MRI]] with [[gadolinium]] is the investigation of choice for the diagnosis of meningioma.<ref name="raio">Meningioma. Radiopaedia(2015) http://radiopaedia.org/articles/meningioma Accessed on September, 25 2015</ref> | ||
* On brain MRI, meningioma is characterized by a [[homogeneous]], well circumscribed, and extra-axial mass with a broad dural base. | * On brain MRI, meningioma is characterized by a [[homogeneous]], well circumscribed, and extra-axial mass with a broad dural base. | ||
* Other findings on brain MRI suggestive of meningioma include: | * Other findings on brain MRI suggestive of meningioma include: |
Revision as of 18:46, 1 October 2015
Meningioma Microchapters |
Diagnosis |
---|
Treatment |
Case Studies |
Meningioma MRI On the Web |
American Roentgen Ray Society Images of Meningioma MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Haytham Allaham, M.D. [2]
Overview
Brain MRI with gadolinium is the investigation of choice for the diagnosis of meningioma. On brain MRI, meningioma is characterized by a homogeneous, well circumscribed, and extra-axial mass with a broad dural base. Other findings on brain MRI suggestive of meningioma include CSF vascular cleft sign, dural tail sign, and sunburst or spokewheel appearance of the vessels.[1]
MRI
- Brain MRI with gadolinium is the investigation of choice for the diagnosis of meningioma.[1]
- On brain MRI, meningioma is characterized by a homogeneous, well circumscribed, and extra-axial mass with a broad dural base.
- Other findings on brain MRI suggestive of meningioma include:
- Dural tail sign
- CSF vascular cleft sign
- Sunburst or spokewheel appearance of the vessels
- When the appearance and location of meningioma are typical, the diagnosis can be made with a very high degree of specificity.
- In the case of anaplastic meningioma, the degree of edema observed on MRI correlates with the invasion of the surrounding tissue by the tumor.
- MRI image characteristics observed among meningioma patients include:
- T1 weighted image demonstrates:
- Isointense mass in 60-90% of the cases
- Hypointense mass in 10-40% of cases
- T1 weighted image with gadolinium contrast demonstrates:
- Intense and homogeneous enhancement
- T2 weighted image demonstrates:
- Isointense mass in 50% of the cases
- Hyperintense mass in 35-40% of the cases
- Hypointense mass in 10-15% of the cases
Gallery
-
Image courtesy of Dr Sajoscha Sorrentino Radiopaedia(original file "here"). [http://radiopaedia.org/licence Creative Commons BY-SA-NC[2]
-
Image courtesy of Dr Sajoscha Sorrentino Radiopaedia(original file "here"). Creative Commons BY-SA-NC[2]
-
Image courtesy of Dr Frank Gaillard Radiopaedia(original file "here"). Creative Commons BY-SA-NC[3]
-
Image courtesy of Dr Ahmed Abd Rabou Radiopaedia(original file "here"). Creative Commons BY-SA-NC[2]
-
Image courtesy of Dr Frank Gaillard Radiopaedia(original file "here"). Creative Commons BY-SA-NC[2]
-
Image courtesy of Dr Frank Gaillard Radiopaedia(original file "here"). Creative Commons BY-SA-NC[2]
-
Image courtesy of Dr Frank Gaillard Radiopaedia(original file "here"). Creative Commons BY-SA-NC[2]
-
Image courtesy of Dr Frank Gaillard Radiopaedia(original file "here"). Creative Commons BY-SA-NC(spokewheel sign)[2]
-
Image courtesy of Dr Hani Al Salam Radiopaedia(original file "here"). Creative Commons BY-SA-NC[2]
-
Image courtesy of Dr Bita Abbas Radiopaedia(original file "here"). Creative Commons BY-SA-NC[2]
References
- ↑ 1.0 1.1 Meningioma. Radiopaedia(2015) http://radiopaedia.org/articles/meningioma Accessed on September, 25 2015
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 Image courtesy of Dr Sajoscha Sorrentino Radiopaedia(original file "here"). Creative Commons BY-SA-NC
- ↑ Image courtesy of Dr Frank Gaillard Radiopaedia(original file "here"). Creative Commons BY-SA-NC