Retinoblastoma MRI: Difference between revisions
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*The mass usually enhances relatively homogeneously when small | *The mass usually enhances relatively homogeneously when small | ||
*Larger | *Larger tumors often have areas of necrosis, rendering it heterogeneous | ||
*Linear enhancement of the choroid beyond the margins of the tumour should raise the possibility of choroidal involvement, although inflammation may lead to similar appearance | *Linear enhancement of the choroid beyond the margins of the tumour should raise the possibility of choroidal involvement, although inflammation may lead to similar appearance | ||
*Enhancement of the anterior chamber need not represent tumour involvement, with hyperaemia, uveitis and iris neovascularisation all leading to asymmetric enhancement | *Enhancement of the anterior chamber need not represent tumour involvement, with hyperaemia, uveitis and iris neovascularisation all leading to asymmetric enhancement | ||
Revision as of 19:09, 19 October 2015
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Retinoblastoma Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Retinoblastoma MRI On the Web |
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American Roentgen Ray Society Images of Retinoblastoma MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [2]Associate Editor(s)-in-Chief: Simrat Sarai, M.D. [3]
Overview
On head and neck MRI, retinoblastoma is characterized by isointense to hypointense mass on T1-weighted MRI and hyperintense mass on T2-weighted MRI.[1]
MRI
MRI is the modality of choice for pre-treatment staging on retinoblastoma.
- The MRI features of retinoblastoma include:[1]
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References
- ↑ 1.0 1.1 Retinoblastoma. Radiopedia(2015) http://radiopaedia.org/articles/retinoblastoma Accessed on October 10, 2015
- ↑ 2.0 2.1 2.2 Image courtesy of Radswiki Radiopaedia (original file [1]).[http://radiopaedia.org/licence Creative Commons BY-SA-NC