Pure arterial malformation on the azygous anterior cerebral artery in a patient with unilateral moyamoya phenomenon and contralateral internal carotid artery occlusion
To date, there have been no reports of a pure arterial malformation (PAM) on the azygous anterior cerebral artery (ACA) with a unilateral moyamoya phenomenon and contralateral internal carotid artery (ICA) occlusion. Herein, we report such a case. A 55-year-old male experienced three hemorrhages. In...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-10-01
|
| Series: | Radiology Case Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1930043325007009 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849240169880748032 |
|---|---|
| author | Jinlu Yu, PhD |
| author_facet | Jinlu Yu, PhD |
| author_sort | Jinlu Yu, PhD |
| collection | DOAJ |
| description | To date, there have been no reports of a pure arterial malformation (PAM) on the azygous anterior cerebral artery (ACA) with a unilateral moyamoya phenomenon and contralateral internal carotid artery (ICA) occlusion. Herein, we report such a case. A 55-year-old male experienced three hemorrhages. In the first hemorrhage, the coexistence of the PAM on the azygous ACA and the unilateral moyamoya phenomenon of the left middle cerebral artery was confirmed. The hemorrhage was caused by the rupture of a coiled aneurysm inside the PAM. The patient subsequently experienced repeated hemorrhages. At the time of the last hemorrhage, the patient was drowsy and could not obey orders. He also presented with left hemiparesis. The Hunt–Hess scale score was Grade III. Right intracranial ICA occlusion on the opposite side of the moyamoya phenomenon was observed via angiography. A ruptured aneurysm on the branch of the ACA, causing the third hemorrhage, was confirmed and embolized to prevent rebleeding. Then, burr hole drainage was performed to resolve the intracerebral hemorrhage. Postoperatively, the patient had no new neurologic deficits. Ten days later, his left hemiparesis was relieved. One month later, he could walk. This is the first case report of the coexistence of a PAM on the azygous ACA with the unilateral middle cerebral artery moyamoya phenomenon and contralateral ICA occlusion. When these abnormalities coexist, the ACA will experience more hemodynamic stress. Flow-related aneurysms can occur inside the PAM or on the azygous ACA branches. Endovascular treatment can be a therapeutic option. |
| format | Article |
| id | doaj-art-8ed56f1ca3cd4a5d93b85c7bdc13bd45 |
| institution | Kabale University |
| issn | 1930-0433 |
| language | English |
| publishDate | 2025-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Radiology Case Reports |
| spelling | doaj-art-8ed56f1ca3cd4a5d93b85c7bdc13bd452025-08-20T04:00:43ZengElsevierRadiology Case Reports1930-04332025-10-0120105338534610.1016/j.radcr.2025.07.028Pure arterial malformation on the azygous anterior cerebral artery in a patient with unilateral moyamoya phenomenon and contralateral internal carotid artery occlusionJinlu Yu, PhD0Department of Neurosurgery, The First Hospital of Jilin University, 1 Xinmin Avenue, 130021 Changchun, ChinaTo date, there have been no reports of a pure arterial malformation (PAM) on the azygous anterior cerebral artery (ACA) with a unilateral moyamoya phenomenon and contralateral internal carotid artery (ICA) occlusion. Herein, we report such a case. A 55-year-old male experienced three hemorrhages. In the first hemorrhage, the coexistence of the PAM on the azygous ACA and the unilateral moyamoya phenomenon of the left middle cerebral artery was confirmed. The hemorrhage was caused by the rupture of a coiled aneurysm inside the PAM. The patient subsequently experienced repeated hemorrhages. At the time of the last hemorrhage, the patient was drowsy and could not obey orders. He also presented with left hemiparesis. The Hunt–Hess scale score was Grade III. Right intracranial ICA occlusion on the opposite side of the moyamoya phenomenon was observed via angiography. A ruptured aneurysm on the branch of the ACA, causing the third hemorrhage, was confirmed and embolized to prevent rebleeding. Then, burr hole drainage was performed to resolve the intracerebral hemorrhage. Postoperatively, the patient had no new neurologic deficits. Ten days later, his left hemiparesis was relieved. One month later, he could walk. This is the first case report of the coexistence of a PAM on the azygous ACA with the unilateral middle cerebral artery moyamoya phenomenon and contralateral ICA occlusion. When these abnormalities coexist, the ACA will experience more hemodynamic stress. Flow-related aneurysms can occur inside the PAM or on the azygous ACA branches. Endovascular treatment can be a therapeutic option.http://www.sciencedirect.com/science/article/pii/S1930043325007009Pure arterial malformationAzygous anterior cerebral arteryMoyamoya phenomenonInternal carotid artery occlusion |
| spellingShingle | Jinlu Yu, PhD Pure arterial malformation on the azygous anterior cerebral artery in a patient with unilateral moyamoya phenomenon and contralateral internal carotid artery occlusion Radiology Case Reports Pure arterial malformation Azygous anterior cerebral artery Moyamoya phenomenon Internal carotid artery occlusion |
| title | Pure arterial malformation on the azygous anterior cerebral artery in a patient with unilateral moyamoya phenomenon and contralateral internal carotid artery occlusion |
| title_full | Pure arterial malformation on the azygous anterior cerebral artery in a patient with unilateral moyamoya phenomenon and contralateral internal carotid artery occlusion |
| title_fullStr | Pure arterial malformation on the azygous anterior cerebral artery in a patient with unilateral moyamoya phenomenon and contralateral internal carotid artery occlusion |
| title_full_unstemmed | Pure arterial malformation on the azygous anterior cerebral artery in a patient with unilateral moyamoya phenomenon and contralateral internal carotid artery occlusion |
| title_short | Pure arterial malformation on the azygous anterior cerebral artery in a patient with unilateral moyamoya phenomenon and contralateral internal carotid artery occlusion |
| title_sort | pure arterial malformation on the azygous anterior cerebral artery in a patient with unilateral moyamoya phenomenon and contralateral internal carotid artery occlusion |
| topic | Pure arterial malformation Azygous anterior cerebral artery Moyamoya phenomenon Internal carotid artery occlusion |
| url | http://www.sciencedirect.com/science/article/pii/S1930043325007009 |
| work_keys_str_mv | AT jinluyuphd purearterialmalformationontheazygousanteriorcerebralarteryinapatientwithunilateralmoyamoyaphenomenonandcontralateralinternalcarotidarteryocclusion |