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  • Title: Angiographic morphology of the posterior communicating artery and basilar in patients with ICA-PComA aneurysm.
    Author: Ijichi S, Ijichi N, Niina K, Nakamura F, Osame M, Tokito S.
    Journal: Neurol Med Chir (Tokyo); 1991 Apr; 31(4):189-93. PubMed ID: 1720204.
    Abstract:
    The relationships between the angiographic morphology of the posterior communicating artery (PComA) and the basilar artery (BA) and saccular aneurysms at the internal carotid artery (ICA)-PComA junction were evaluated in 23 patients with ICA-PComA aneurysm and 46 controls. No significant differences were found in the height of the basilar top, the dislocation and inner diameter of the BA, and the distance between the basilar top and the ICA-PComA junction. However, the angle between the PComA and C2 portion of the ICA was larger and the PComA straighter in ICA-PComA aneurysm patients. Tension in the PComA and mechanical damage to the divergent angle of the PComA are probably important factors in the development of ICA-PComA aneurysms.
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