Subependymal giant cell astrocytoma CT
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Sujit Routray, M.D. [2]
Overview
Head CT scan may be helpful in the diagnosis of subependymal giant cell astrocytoma. On head CT scan, subependymal giant cell astrocytoma is characterized by an intraventricular mass near the foramen of Monro, which is iso- or slightly hypoattenuating to the grey matter. Accompanying hydrocephalus may be present. There is marked enhancement on contrast administration.[1]
CT
Head CT scan may be helpful in the diagnosis of subependymal giant cell astrocytoma. On head CT scan, subependymal giant cell astrocytoma is characterized by:[1]
- Intraventricular mass near the foramen of Monro
- Usually larger than 1 cm
- Iso- or slightly hypoattenuating to grey matter
- Calcification is common
- Hemorrhage
- Accompanying hydrocephalus may be present
- Marked contrast enhancement
Gallery
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![There is an intraventricular mass in the foramem of Monro area, on the left, with contrast enhancement and irregular calcifications. Multiple subependymal calcified nodules are also seem.[2]](/images/7/74/Subependymal_giant_cell_astrocytoma_CT_scan_1.jpg)
There is an intraventricular mass in the foramem of Monro area, on the left, with contrast enhancement and irregular calcifications. Multiple subependymal calcified nodules are also seem.[2]
![There is an intraventricular mass in the foramem of Monro area, on the left, with contrast enhancement and irregular calcifications. Multiple subependymal calcified nodules are also seem.[2]](/index.php/File:Subependymal_giant_cell_astrocytoma_CT_scan_1.jpg)
Reference
- ↑ 1.0 1.1 Radiographic CT features of subependymal giant cell astrocytoma. Dr Bruno Di Muzio and Dr Jeremy Jones et al. Radiopaedia 2015. http://radiopaedia.org/articles/subependymal-giant-cell-astrocytoma. Accessed on November 4, 2015
- ↑ Image courtesy of Dr. Paresh K Desai. Radiopaedia (original file here). Creative Commons BY-SA-NC