PMC3229812_01
Non-contrast, axial CT image of the head demonstrating a 1.6-cm hyperdense suprasellar mass, and a small amount of subarachnoid hemorrhage extending into the sylvian and intrahemispheric fissures
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F1
A non-contrast computed tomography (CT) scan of the head revealed a 1.6-cm hyperdense suprasellar mass compressing the optic chiasm, eccentric to the left side, and a small amount of subarachnoid hemorrhage extending into the sylvian and intrahemispheric fissures [Figure 1].
Coronal CT angiogram image without evidence of aneurysm or vascular malformation
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F2
A CT angiogram (CTA) did not show an associated aneurysm or vascular malformation [Figure 2].
T1, post-contrast sagittal and coronal MR images of the brain demonstrating an isointense, non-contrast enhancing mass, consistent with hematoma
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F3
Magnetic resonance imaging (MRI) of the brain demonstrated the same isointense, non-contrast enhancing mass, consistent with hematoma [Figure 3].
Lateral cerebral angiogram image demonstrating an irregularly shaped, postero-laterally pointing, 2.5-mm left PCoA aneurysm, with the suggestion of a larger surrounding pseudoaneurysm
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F4