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Published on: October 10, 2025
Multiple Cerebral Aneurysms Associated With Neurofibromatosis Type 1
Yuki Takeshima1, Yasuyuki Kaku1, Toru Nishi1
1Division of Neurosurgery, Department of Cerebrovascular Medicine and Surgery, Saiseikai Kumamoto Hospital, Kumamoto, Japan.
Neurofibromatosis type 1 (NF1) is linked to multiple cerebral aneurysms, suggesting a potential risk factor due to vessel wall issues. Early detection and aggressive treatment are crucial for managing these aneurysms and preventing hemorrhage.
Area of Science:
- Neurology
- Genetics
- Vascular Medicine
Background:
- Neurofibromatosis type 1 (NF1) is a rare genetic disorder affecting approximately 1 in 3000 births.
- NF1 is primarily known for its role as a tumor suppressor.
- While vasculopathy is a known complication of NF1, its association with cerebral aneurysms remains unclear.
Observation:
- A case study involving a 67-year-old female with NF1 presented with eight cerebral aneurysms.
- Initial treatment involved microsurgical clipping for two unruptured aneurysms: a distal anterior cerebral artery (ACA) aneurysm and an anterior communicating artery aneurysm.
- One ACA aneurysm ruptured after five years, necessitating coil embolization, while four other unruptured aneurysms were surgically treated.
Findings:
- The case suggests that NF1 may be a contributing factor to the development of multiple cerebral aneurysms.
- Vessel wall vulnerability in NF1 patients could increase the risk of aneurysm formation and rupture.
- Aggressive management and close monitoring are vital for patients with NF1 and multiple cerebral aneurysms.
Implications:
- This case highlights the importance of considering NF1 as a potential risk factor for cerebral aneurysms.
- Findings underscore the need for vigilant surveillance and proactive treatment strategies in NF1 patients with cerebral aneurysms.
- Early and aggressive intervention may be critical in preventing potentially life-threatening subarachnoid hemorrhage in this patient population.
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