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Spontaneous regression of unruptured small intracranial aneurysm associated with proximal parent artery stenosis.

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Title: Spontaneous regression of unruptured small intracranial aneurysm associated with proximal parent artery stenosis.
Authors: Endo, Hideki (AUTHOR), Honjo, Kaori (AUTHOR), Ono, Hidetoshi (AUTHOR), Ishikawa, Kohei (AUTHOR), Nakamura, Hirohiko (AUTHOR)
Source: Neurological Sciences. May2025, Vol. 46 Issue 5, p2339-2341. 3p.
Subjects: Magnetic resonance angiography, Intracranial aneurysms, Internal carotid artery, Arterial stenosis, Medical sciences
Abstract: Spontaneous thrombosis of intracranial aneurysms is rare. Spontaneous regression of unruptured small saccular aneurysms is even more rare. A 76-year-old woman with a history of hypertension and dyslipidemia was referred for evaluation of an unruptured intracranial aneurysm. Magnetic resonance angiography showed a left internal carotid artery aneurysm with a maximum width of 4.0 mm and a neck diameter of 3.0 mm. She was monitored using annual magnetic resonance angiography. Imaging at the 8.5-year follow-up showed partial aneurysm regression and stenosis in the parent artery proximal to the aneurysm. The next year, it had almost completely regressed. Spontaneous regression can occur even with unruptured small intracranial aneurysms. In our patient, proximal parent artery stenosis may have played a role. [ABSTRACT FROM AUTHOR]
Copyright of Neurological Sciences is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Spontaneous regression of unruptured small intracranial aneurysm associated with proximal parent artery stenosis.
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  Data: <searchLink fieldCode="AR" term="%22Endo%2C+Hideki%22">Endo, Hideki</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Honjo%2C+Kaori%22">Honjo, Kaori</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ono%2C+Hidetoshi%22">Ono, Hidetoshi</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ishikawa%2C+Kohei%22">Ishikawa, Kohei</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nakamura%2C+Hirohiko%22">Nakamura, Hirohiko</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Neurological+Sciences%22">Neurological Sciences</searchLink>. May2025, Vol. 46 Issue 5, p2339-2341. 3p.
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  Data: <searchLink fieldCode="DE" term="%22Magnetic+resonance+angiography%22">Magnetic resonance angiography</searchLink><br /><searchLink fieldCode="DE" term="%22Intracranial+aneurysms%22">Intracranial aneurysms</searchLink><br /><searchLink fieldCode="DE" term="%22Internal+carotid+artery%22">Internal carotid artery</searchLink><br /><searchLink fieldCode="DE" term="%22Arterial+stenosis%22">Arterial stenosis</searchLink><br /><searchLink fieldCode="DE" term="%22Medical+sciences%22">Medical sciences</searchLink>
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  Label: Abstract
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  Data: Spontaneous thrombosis of intracranial aneurysms is rare. Spontaneous regression of unruptured small saccular aneurysms is even more rare. A 76-year-old woman with a history of hypertension and dyslipidemia was referred for evaluation of an unruptured intracranial aneurysm. Magnetic resonance angiography showed a left internal carotid artery aneurysm with a maximum width of 4.0 mm and a neck diameter of 3.0 mm. She was monitored using annual magnetic resonance angiography. Imaging at the 8.5-year follow-up showed partial aneurysm regression and stenosis in the parent artery proximal to the aneurysm. The next year, it had almost completely regressed. Spontaneous regression can occur even with unruptured small intracranial aneurysms. In our patient, proximal parent artery stenosis may have played a role. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Neurological Sciences is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Text: English
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        Type: general
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      – SubjectFull: Internal carotid artery
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              Text: May2025
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