Retinoblastoma CT: Difference between revisions
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==Overview== | ==Overview== | ||
CT scan has been the standard imaging study of retinoblastoma. Retinoblastoma usually appears as an intra-ocular mass with calcification (in 80% of the cases). | CT scan has been the standard imaging study of retinoblastoma. Retinoblastoma usually appears as an intra-ocular mass with calcification (in 80% of the cases). | ||
Revision as of 18:17, 3 May 2019
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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 CT On the Web |
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American Roentgen Ray Society Images of Retinoblastoma CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [2]; Associate Editor(s)-in-Chief: Sahar Memar Montazerin, M.D.[3] Simrat Sarai, M.D. [4]
Overview
CT scan has been the standard imaging study of retinoblastoma. Retinoblastoma usually appears as an intra-ocular mass with calcification (in 80% of the cases).
CT scan
Retinoblastoma is diagnosed via indirect ophthalmoscopy. Imaging studies are usually done for these goals:[1]
- To confirm the diagnosis in the difficult cases.
- To assess the involvement of extra-ocular extension or associated cerebral lesion in trilateral cases.
Findings on CT scan suggestive of/diagnostic of retinoblastoma include intra-ocular mass with calcification.
- CT scan has been the standard imaging study in the evaluation of retinoblastoma due to its sensitivity in the detection of typical calcification of the tumor appearing in 80% of large tumors.
However, CT scan has less sensitivity compared to MRI in the diagnosis of tumor infiltration to the nearby structures.[1][2]
References
- ↑ 1.0 1.1 Meel R, Radhakrishnan V, Bakhshi S (April 2012). "Current therapy and recent advances in the management of retinoblastoma". Indian J Med Paediatr Oncol. 33 (2): 80–8. doi:10.4103/0971-5851.99731. PMC 3439795. PMID 22988349.
- ↑ Schueler AO, Hosten N, Bechrakis NE, Lemke AJ, Foerster P, Felix R, Foerster MH, Bornfeld N (March 2003). "High resolution magnetic resonance imaging of retinoblastoma". Br J Ophthalmol. 87 (3): 330–5. doi:10.1136/bjo.87.3.330. PMC 1771559. PMID 12598449.
- ↑ 3.0 3.1 Image courtesy of Dr. Dalia Ibrahim. Radiopaedia (original file [1]).[http://radiopaedia.org/licence Creative Commons BY-SA-NC