Related Experiment Videos
Aneurysms in twig-like middle cerebral artery.
Hon-Man Liu1, Dar-Ming Lai, Yong-Kwang Tu
1Department of Radiology, Division of Neurosurgery, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan. hml@ha.mc.ntu.edu.tw
Cerebrovascular Diseases (Basel, Switzerland)
|June 1, 2005
Summary
A newly identified vascular abnormality of the middle cerebral artery (MCA) presents as a twig-like form. This rare condition is linked to intracranial hemorrhage and aneurysms, indicating it is not benign.
Area of Science:
- Neurology
- Vascular Neurology
- Neuroimaging
Background:
- A novel vascular abnormality of the middle cerebral artery (MCA) is described.
- This condition has not been previously reported in medical literature.
Observation:
- Two patients, a 44-year-old male and a 67-year-old female, presented with intracranial hemorrhage.
- Both individuals exhibited a unique twig-like vascular formation in the main trunk of the MCA.
Findings:
- The abnormality was observed proximal to the genu of the MCA.
- Intracranial hemorrhage in these patients was attributed to an aneurysm within the twig-like vascular network.
- This network, situated between the internal carotid artery bifurcation and the MCA's insular segment, differs from typical collateral circulation seen in moyamoya disease or acquired occlusions.
Implications:
- This newly identified MCA vascular lesion is clinically significant and potentially dangerous.
- The association with aneurysms highlights a critical aspect requiring clinical attention and further investigation.