Hamartoma MRI: Difference between revisions
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==Overview== | ==Overview== | ||
On MRI, hamartoma is characterized by a heterogeneous signal in T1 and high signal due to fat and cartilaginous components in T2.<ref name="radio">Hypothalamic hamartoma. Dr Donna D'Souza et al. Radiopedia.http://radiopaedia.org/articles/pulmonary-hamartoma-1 Accessed on December 09, 2015</ref> | |||
==MRI== | |||
MRI is the modality of choice for assessment of hypothalamic, spleen, kidney and other abdominal hamartomas. | |||
*T1: isointense to cerebral cortex | |||
*T1 C+ (Gd): no contrast enhancement | |||
*T2: | |||
**iso- to hyperintense to cerebral cortex, the higher the proportion of glial cells, the higher the T2 signal. | |||
*MR spectroscopy | |||
**reduced NAA/C | |||
**increased myoinositol | |||
**increased Cho/Cr compared to the amygdala has also been reported. | |||
== | |||
==Gallery== | |||
([http://www.radswiki.net Images courtesy of RadsWiki]) | ([http://www.radswiki.net Images courtesy of RadsWiki]) | ||
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==References== | ==References== | ||
{{reflist| | {{reflist|1}} | ||
[[Category:Disease]] | [[Category:Disease]] |
Revision as of 23:08, 8 January 2016
Hamartoma Microchapters |
Diagnosis |
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Treatment |
Case Studies |
Hamartoma MRI On the Web |
American Roentgen Ray Society Images of Hamartoma MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Maria Fernanda Villarreal, M.D. [2]
Overview
On MRI, hamartoma is characterized by a heterogeneous signal in T1 and high signal due to fat and cartilaginous components in T2.[1]
MRI
MRI is the modality of choice for assessment of hypothalamic, spleen, kidney and other abdominal hamartomas.
- T1: isointense to cerebral cortex
- T1 C+ (Gd): no contrast enhancement
- T2:
- iso- to hyperintense to cerebral cortex, the higher the proportion of glial cells, the higher the T2 signal.
- MR spectroscopy
- reduced NAA/C
- increased myoinositol
- increased Cho/Cr compared to the amygdala has also been reported.
Gallery
Biliar Hamartomas
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Biliary hamartomas
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Biliary hamartomas
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Biliary hamartomas
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Biliary hamartomas
Hypothalamic hamartoma
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MRI showing hypothalamic hamartoma
References
- ↑ Hypothalamic hamartoma. Dr Donna D'Souza et al. Radiopedia.http://radiopaedia.org/articles/pulmonary-hamartoma-1 Accessed on December 09, 2015