PMC3385072_01
Axial (a) and coronal (b) CT angiogram images reveal an approximately 8-mm aneurysm along the junction of the left A1 and ACoA. Significant stenosis of the extracranial ICA at its origin is also noted (c)
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F1
Her left ICA did not harbor any stenosis [Figure 1].
Axial (a) and coronal (b) CT angiogram images 14 months following a right-sided carotid endarterectomy disclose spontaneous regression/thrombosis of the aneurysm
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F2
A repeat CT angiography to assess the state of the 8-mm incidental aneurysm 14 months later surprisingly revealed an almost complete regression of the aneurysm [Figure 2].