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Neurofibromatosis and arterial aneurysms
J L Huffman1, V Gahtan, V D Bowers
1Univesity of South Florida College of Medicine, Tampa, USA.
The American Surgeon
|April 1, 1996
Summary
Neurofibromatosis (NF) is linked to rare arterial aneurysms. Early detection and management of these vascular complications in NF patients are crucial for preventing severe outcomes.
Area of Science:
- Vascular Surgery
- Genetics
- Pathology
Background:
- Neurofibromatosis (NF) is an autosomal dominant disorder characterized by neural crest cell proliferation.
- Arterial aneurysms are rarely associated with NF, posing significant risks.
Observation:
- Three male patients with NF and arterial aneurysms were managed.
- Cases included renal artery, superior mesenteric artery, and popliteal artery aneurysms.
- Histopathology revealed Schwann cell proliferation and mesodermal dysplasia.
Findings:
- Aneurysms in NF can arise from intramural Schwann cell proliferation in large arteries or mesodermal dysplasia in small arteries.
- Management strategies varied, including nephrectomy, aneurysm ligation, and bypass grafting.
- NF-associated aneurysms, especially visceral and renal, can be occult and prone to rupture.
Implications:
- Clinicians must maintain a high index of suspicion for aneurysms in NF patients.
- Prompt diagnosis and intervention are vital for managing these potentially catastrophic vascular lesions.
- Understanding the underlying pathology aids in risk stratification and treatment planning for NF patients.