PMC5379785_01
NECT brain revealed a midline, well defined round and heterogeneous mass in the region of foramen of Monro showing patchy areas of peripheral hyperdensity with HU 70
AJNS-12-123-g001.jpg
PMC5379785_01_AJNS-12-123-g001.jpg
F1
Plain CT brain revealed a midline, well defined round and heterogeneous mass in the region of foramen of Monro showing patchy areas of peripheral hyperdensity with the mean Hounsfield Unit 70 [Figure 1].
CT angio MIP imageshows anterior displacement of bilateral anterior cerebral artery and callososeptal branches without encasement
AJNS-12-123-g002.jpg
PMC5379785_01_AJNS-12-123-g002.jpg
F2
The lesion showed minimal enhancement and anterior displacement of anterior cerebral artery (ACA) and its callososeptal branches without encasement [Figure 2].
T1WI shows hyperintense mass in the region of foramen of Monro extending superiorly into the frontal lobe
AJNS-12-123-g003.jpg
PMC5379785_01_AJNS-12-123-g003.jpg
F3
Coronal FLAIR the lesion remains hyperintense
AJNS-12-123-g004.jpg
PMC5379785_01_AJNS-12-123-g004.jpg
F4
T2 weighted images and was not suppressed in Fluid attenuated inversion recovery (FLAIR) [Figure 4].
The lesion showed diffusion restriction
AJNS-12-123-g005.jpg
PMC5379785_01_AJNS-12-123-g005.jpg
F5
The third ventricle appears to be displaced inferiorly and fourth ventricle appears normal. The major part of the lesion showed restricted diffusion with low-apparent diffusion co-efficient (ADC) values [Figure 5], and peripheral blooming in gradient [Figure 6]. The flow voids of bilateral internal carotid arteries were normal.
The mass shows blooming in gradient sequence
AJNS-12-123-g006.jpg
PMC5379785_01_AJNS-12-123-g006.jpg
F6
The third ventricle appears to be displaced inferiorly and fourth ventricle appears normal. The major part of the lesion showed restricted diffusion with low-apparent diffusion co-efficient (ADC) values [Figure 5], and peripheral blooming in gradient [Figure 6]. The flow voids of bilateral internal carotid arteries were normal.
MR spectroscopy reveals prominent peaks centered at 1-1.5 ppm, which probably corresponded to lipid/cholesterol peaks
AJNS-12-123-g007.jpg
PMC5379785_01_AJNS-12-123-g007.jpg
F7
MR spectroscopy revealed prominent peaks centered at 1-1.5 ppm, which probably corresponded to lipid/cholesterol peaks [Figure 7].