Subependymal giant cell astrocytoma MRI: Difference between revisions
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==MRI== | ==MRI== | ||
*Brain MRI may be helpful in the diagnosis of subependymal giant cell astrocytoma. | *Brain MRI may be helpful in the diagnosis of subependymal giant cell astrocytoma. Findings on MRI suggestive of/diagnostic of subependymal giant cell astrocytoma include:<ref name=CTfindings1>Radiographic MRI features of subependymal giant cell astrocytoma. Dr Bruno Di Muzio and Dr Jeremy Jones et al. Radiopaedia 2015. http://radiopaedia.org/articles/subependymal-giant-cell-astrocytoma. Accessed on November 4, 2015</ref> | ||
*Solitary lesion near the foramen of monroe | |||
*Iso-signal intensity on T1-weighted images | |||
*Other findings on MRI suggestive of subependymal giant cell astrocytoma include:<ref name="OuyangZhang2014">{{cite journal|last1=Ouyang|first1=Taohui|last2=Zhang|first2=Na|last3=Benjamin|first3=Thomas|last4=Wang|first4=Long|last5=Jiao|first5=Jiantong|last6=Zhao|first6=Yiqing|last7=Chen|first7=Jian|title=Subependymal giant cell astrocytoma: current concepts, management, and future directions|journal=Child's Nervous System|volume=30|issue=4|year=2014|pages=561–570|issn=0256-7040|doi=10.1007/s00381-014-2383-x}}</ref> | *Other findings on MRI suggestive of subependymal giant cell astrocytoma include:<ref name="OuyangZhang2014">{{cite journal|last1=Ouyang|first1=Taohui|last2=Zhang|first2=Na|last3=Benjamin|first3=Thomas|last4=Wang|first4=Long|last5=Jiao|first5=Jiantong|last6=Zhao|first6=Yiqing|last7=Chen|first7=Jian|title=Subependymal giant cell astrocytoma: current concepts, management, and future directions|journal=Child's Nervous System|volume=30|issue=4|year=2014|pages=561–570|issn=0256-7040|doi=10.1007/s00381-014-2383-x}}</ref> | ||
**[[Calcification]] around the rim of the tumor (punctuate or nodular) | **[[Calcification]] around the rim of the tumor (punctuate or nodular) | ||
Revision as of 15:07, 13 August 2019
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Subependymal giant cell astrocytoma Microchapters |
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Differentiating Subependymal Giant Cell Astrocytoma from other Diseases |
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Subependymal giant cell astrocytoma MRI On the Web |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Sujit Routray, M.D. [2]
Overview
Brain MRI is helpful in the diagnosis of subependymal giant cell astrocytoma. On MRI, subependymal giant cell astrocytoma is characterized by hypo- to isointensity on T1-weighted imaging and hyperintensity on T2-weighted imaging. There may be marked enhancement on contrast administration.[1]
MRI
- Brain MRI may be helpful in the diagnosis of subependymal giant cell astrocytoma. Findings on MRI suggestive of/diagnostic of subependymal giant cell astrocytoma include:[1]
- Solitary lesion near the foramen of monroe
- Iso-signal intensity on T1-weighted images
- Other findings on MRI suggestive of subependymal giant cell astrocytoma include:[2]
- Calcification around the rim of the tumor (punctuate or nodular)
- Small cysts
Gallery
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![Two girls ([A] 9 and [B] 12 years old) with acute headaches and vomiting. On examination, both had papilledema. Brain magnetic resonance imaging shows ventricular subependymal giant cell astrocytomas with secondary hydrocephalus.[3]](/images/e/e3/Subependymal_giant_cell_astrocytoma_MRI_1.jpg)
Two girls ([A] 9 and [B] 12 years old) with acute headaches and vomiting. On examination, both had papilledema. Brain magnetic resonance imaging shows ventricular subependymal giant cell astrocytomas with secondary hydrocephalus.[3] -
![This 6-year-old girl had a growing but asymptomatic tumor. (A) Her screening magnetic resonance imaging at age 2 revealed a subependymal giant cell astrocytoma with mild enlargement of the right lateral ventricle. (B) By age 6 years, the lesion had enlarged markedly.[3]](/images/7/7f/Subependymal_giant_cell_astrocytoma_MRI_2.jpg)
This 6-year-old girl had a growing but asymptomatic tumor. (A) Her screening magnetic resonance imaging at age 2 revealed a subependymal giant cell astrocytoma with mild enlargement of the right lateral ventricle. (B) By age 6 years, the lesion had enlarged markedly.[3] -
![Subependymal giant cell astrocytoma of the type associated with tuberous sclerosis are typically bulky, contrast-enhancing mass in the region of the foramen of Monro. Most overlie the head of the caudate nucleus. Foramen obstruction has produced hydrocephalus.[4]](/images/f/f6/Subependymal_giant_cell_astrocytoma_MRI_3.jpg)
Subependymal giant cell astrocytoma of the type associated with tuberous sclerosis are typically bulky, contrast-enhancing mass in the region of the foramen of Monro. Most overlie the head of the caudate nucleus. Foramen obstruction has produced hydrocephalus.[4]
![Two girls ([A] 9 and [B] 12 years old) with acute headaches and vomiting. On examination, both had papilledema. Brain magnetic resonance imaging shows ventricular subependymal giant cell astrocytomas with secondary hydrocephalus.[3]](/index.php/File:Subependymal_giant_cell_astrocytoma_MRI_1.jpg)
![This 6-year-old girl had a growing but asymptomatic tumor. (A) Her screening magnetic resonance imaging at age 2 revealed a subependymal giant cell astrocytoma with mild enlargement of the right lateral ventricle. (B) By age 6 years, the lesion had enlarged markedly.[3]](/index.php/File:Subependymal_giant_cell_astrocytoma_MRI_2.jpg)
![Subependymal giant cell astrocytoma of the type associated with tuberous sclerosis are typically bulky, contrast-enhancing mass in the region of the foramen of Monro. Most overlie the head of the caudate nucleus. Foramen obstruction has produced hydrocephalus.[4]](/index.php/File:Subependymal_giant_cell_astrocytoma_MRI_3.jpg)
References
- ↑ 1.0 1.1 Radiographic MRI features of subependymal giant cell astrocytoma. Dr Bruno Di Muzio and Dr Jeremy Jones et al. Radiopaedia 2015. http://radiopaedia.org/articles/subependymal-giant-cell-astrocytoma. Accessed on November 4, 2015
- ↑ Ouyang, Taohui; Zhang, Na; Benjamin, Thomas; Wang, Long; Jiao, Jiantong; Zhao, Yiqing; Chen, Jian (2014). "Subependymal giant cell astrocytoma: current concepts, management, and future directions". Child's Nervous System. 30 (4): 561–570. doi:10.1007/s00381-014-2383-x. ISSN 0256-7040.
- ↑ 3.0 3.1 Roth, Jonathan; Roach, E. Steve; Bartels, Ute; Jóźwiak, Sergiusz; Koenig, Mary Kay; Weiner, Howard L.; Franz, David N.; Wang, Henry Z. (2013). "Subependymal Giant Cell Astrocytoma: Diagnosis, Screening, and Treatment. Recommendations From the International Tuberous Sclerosis Complex Consensus Conference 2012". Pediatric Neurology. 49 (6): 439–444. doi:10.1016/j.pediatrneurol.2013.08.017. ISSN 0887-8994.
- ↑ Radiology features of subependymal giant cell astrocytoma. Libre pathology 2015. http://librepathology.org/wiki/index.php/Subependymal_giant_cell_astrocytoma. Accessed on November 2, 2015