Subependymal giant cell astrocytoma MRI
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1], Associate Editor(s)-in-Chief: Ifeoma Odukwe, M.D. [2], Sujit Routray, M.D. [3]
Overview
On brain MRI, some of the findings that are suggestive of subependymal giant cell astrocytoma include T1 isointense and hypointense signal enhancement, T2 isointense and hyperintense signal enhancement, and enlargement of ventricles.
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][2]
- Well circumscribed mass
- Perilesional edema
- T1 isointense and hypointense signal enhancement
- T2 isointense and hyperintense signal enhancement
- Calcification
- Cyst
- Enlargement of ventricles
- Homogenous postcontrast enhancement
Serial MRI's every 1-3 years is recommended in asymptomatic patients younger than 25 as tumor growth is more common in these patients.[1]
References
- ↑ 1.0 1.1 Stein JR, Reidman DA (2016). "Imaging Manifestations of a Subependymal Giant Cell Astrocytoma in Tuberous Sclerosis". Case Rep Radiol. 2016: 3750450. doi:10.1155/2016/3750450. PMC 4752974. PMID 26942030.
- ↑ Beaumont, Thomas L.; Godzik, Jakub; Dahiya, Sonika; Smyth, Matthew D. (2015). "Subependymal giant cell astrocytoma in the absence of tuberous sclerosis complex: case report". Journal of Neurosurgery: Pediatrics. 16 (2): 134–137. doi:10.3171/2015.1.PEDS13146. ISSN 1933-0707.