Norikazu Yamana

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BACKGROUND Intracerebral hemorrhage is the most feared complication of intravenous thrombolysis for acute ischemic stroke. Such hemorrhage usually occurs within or at the margin of ischemic or manifestly infarcted brain tissue. A patient with Trousseau syndrome who developed multiple extra-ischemic hemorrhages following intravenous thrombolysis is(More)
Distal anterior choroidal artery aneurysms are quite rare, and appropriate treatment timing and methods remain unclear. Direct surgery of these aneurysms is difficult due to their deep location, small size, and angioarchitecture;however, pseudoaneurysms might disappear spontaneously with conservative treatment. A 65-year-old man with a history of(More)
A 45-year-old woman presented with a rare case of small isolated Onodi cell mucocele manifesting as unilateral chronic optic neuropathy. The patient complained of gradual visual disturbance of her left eye with no other neurological abnormalities. Neuroimaging examinations showed a small cystic lesion located in the left posterior ethmoid extending into the(More)
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