Astrocytoma MRI: Difference between revisions
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==MRI== | ==MRI== | ||
MRI may be helpful in the diagnosis of astrocytoma. Findings on MRI suggestive of astrocytoma include:<ref name="pmid17964028">{{cite journal |vauthors=Sathornsumetee S, Rich JN, Reardon DA |title=Diagnosis and treatment of high-grade astrocytoma |journal=Neurol Clin |volume=25 |issue=4 |pages=1111–39, x |date=November 2007 |pmid=17964028 |doi=10.1016/j.ncl.2007.07.004 |url=}}</ref><ref name="pmid22819718">{{cite journal |vauthors=Pedersen CL, Romner B |title=Current treatment of low grade astrocytoma: a review |journal=Clin Neurol Neurosurg |volume=115 |issue=1 |pages=1–8 |date=January 2013 |pmid=22819718 |doi=10.1016/j.clineuro.2012.07.002 |url=}}</ref> | [[MRI]] may be helpful in the diagnosis of astrocytoma. Findings on MRI suggestive of astrocytoma include:<ref name="pmid17964028">{{cite journal |vauthors=Sathornsumetee S, Rich JN, Reardon DA |title=Diagnosis and treatment of high-grade astrocytoma |journal=Neurol Clin |volume=25 |issue=4 |pages=1111–39, x |date=November 2007 |pmid=17964028 |doi=10.1016/j.ncl.2007.07.004 |url=}}</ref><ref name="pmid22819718">{{cite journal |vauthors=Pedersen CL, Romner B |title=Current treatment of low grade astrocytoma: a review |journal=Clin Neurol Neurosurg |volume=115 |issue=1 |pages=1–8 |date=January 2013 |pmid=22819718 |doi=10.1016/j.clineuro.2012.07.002 |url=}}</ref> | ||
* Low grade astrocytoma (pilocytic and diffuse astrocytoma) | * [[Low grade astrocytoma]] ([[Pilocytic astrocytoma|pilocytic]] and [[diffuse astrocytoma]]) | ||
** T1: Decreased resonance in comparison to surrounding brain tissue | ** T1: Decreased resonance in comparison to surrounding brain tissue | ||
** T2: Increased resonance in comparison to surrounding brain tissue | ** T2: Increased resonance in comparison to surrounding brain tissue | ||
* High grade astrocytoma | * [[High grade astrocytoma]] | ||
** Anaplastic astrocytomas | ** [[Anaplastic astrocytoma|Anaplastic astrocytomas]] | ||
*** Hypointense T1 | *** Hypointense T1 | ||
*** Hyperintense T2 | *** Hyperintense T2 | ||
*** There might be some contrast enhancement and edema | *** There might be some contrast enhancement and [[edema]] | ||
** Glioblastoma multiform | ** [[Glioblastoma multiforme|Glioblastoma multiform]] | ||
*** Irregular ring-nodular enhancing lesions | *** Irregular ring-nodular enhancing lesions | ||
*** Central necrosis | *** Central [[necrosis]] | ||
*** Surrounding vasogenic edema | *** Surrounding [[vasogenic edema]] | ||
===== Pilocytic astrocytoma ===== | ===== Pilocytic astrocytoma ===== |
Revision as of 15:02, 14 January 2019
Astrocytoma Microchapters |
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Treatment |
Case Study |
Astrocytoma MRI On the Web |
American Roentgen Ray Society Images of Astrocytoma MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Fahimeh Shojaei, M.D.
Overview
MRI
MRI may be helpful in the diagnosis of astrocytoma. Findings on MRI suggestive of astrocytoma include:[1][2]
- Low grade astrocytoma (pilocytic and diffuse astrocytoma)
- T1: Decreased resonance in comparison to surrounding brain tissue
- T2: Increased resonance in comparison to surrounding brain tissue
- High grade astrocytoma
- Anaplastic astrocytomas
- Hypointense T1
- Hyperintense T2
- There might be some contrast enhancement and edema
- Glioblastoma multiform
- Irregular ring-nodular enhancing lesions
- Central necrosis
- Surrounding vasogenic edema
- Anaplastic astrocytomas
Pilocytic astrocytoma
Diffuse astrocytoma
Anaplastic astrocytoma
Glioblastoma multiform
References
- ↑ Sathornsumetee S, Rich JN, Reardon DA (November 2007). "Diagnosis and treatment of high-grade astrocytoma". Neurol Clin. 25 (4): 1111–39, x. doi:10.1016/j.ncl.2007.07.004. PMID 17964028.
- ↑ Pedersen CL, Romner B (January 2013). "Current treatment of low grade astrocytoma: a review". Clin Neurol Neurosurg. 115 (1): 1–8. doi:10.1016/j.clineuro.2012.07.002. PMID 22819718.
- ↑ Case courtesy of A.Prof Frank Gaillard, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. From the case <a href="https://radiopaedia.org/cases/8474">rID: 8474</a>
- ↑ Case courtesy of Dr Bruno Di Muzio, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. From the case <a href="https://radiopaedia.org/cases/41396">rID: 41396</a>
- ↑ Case courtesy of Dr Bruno Di Muzio, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. From the case <a href="https://radiopaedia.org/cases/39124">rID: 39124</a>
- ↑ Case courtesy of A.Prof Frank Gaillard, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. From the case <a href="https://radiopaedia.org/cases/2589">rID: 2589</a>