Blood blister-like aneurysms (BBAs) of the internal carotid artery (ICA) are rare and challenging vascular lesions that can lead to serious complications, including subarachnoid hemorrhage.

Imaging studies revealed a distal aneurysm of the internal carotid artery (ICA) (Figure) displacing and compressing the right oculomotor nerve. After surgical exclusion of the aneurysm from the ...