抄録
This report describes a case of brain tumor with multiple cerebral aneurysms. A 73-year-old female complained of double vision and head heaviness. Bilateral visual disturbance, right homonymous hemianopsia, left abducens palsy and upward gaze disturbance were observed. Three lesions were noted on computerized tomography (CT). One lesion was located in the left middle fossa adjacent to the cavernous sinus, which had heterogeneous contents with partial enhancement and peripheral calcification. Two other lesions had round homogeneous high density, one of which located suprasellarly showing marked enhancement, and the other located in the left occipital region with slight enhancement. Angiographically, the middle fossa lesion was revealed to be a partially thrombosed giant aneurysm (17×11×26 mm) and the suprasellar lesion a basilar top aneurysm (21×15×18 mm). The occipital lesion was radiologically considered to be meningioma. No surgery was attempted. In combined cases of brain tumor and aneurysm, the giant aneurysm is rare (3.7%), and multiple aneurysms are rather common (11.0-14.0%). There are several pathogenetic theories about aneurysms in the cases of brain tumor. In this case the aneurysms may be considered to coexist incidentally with the tumor, but the congenital factors can not be denied because of the multiplicity of the aneurysm.
