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Chirurgia 2014 Ottobre;27(5):301-3

lingua: Inglese

True posterior communicating artery aneurysm presenting with subarachnoid and intracerebral hemorrhage: radiological and pathological analyses

Nomura M. 1, Mori K. 1, Tamase A. 1, Kamide T. 1, Kitamura Y. 1, Seki S. 1, Shima H. 1, Yanagimoto K. 2

1 Department of Neurosurgery, Yokohama Sakae Kyosai Hospital, Yokohama, Japan;
2 Department of Pathology, Yokohama Sakae Kyosai Hospital, Yokohama, Japan


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We report a patient with a ruptured true posterior communicating artery aneurysm presenting with subarachnoid and intracerebral hemorrhage. A 71-year-old woman suddenly lost consciousness. Computed tomography showed subarachnoid hemorrhage and intracerebral hematoma in the left temporal lobe. Contrast-enhanced computed tomography showed an aneurysm of the left posterior communicating artery. Intraoperative observation revealed that the aneurysm originated from the trunk of the posterior communicating artery, and was buried in the temporal lobe. The aneurysm neck was clipped successfully before exposure of the dome to prevent rupture. Then, the aneurysm dome was dissected from the surrounding brain. Pathological examination of the aneurysm demonstrated a fresh thrombus in the aneurysm cavity. In this report, clinical and pathological characteristics of a true posterior communicating artery aneurysm are discussed.

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