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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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What is the surgical indication for performing the Hunterian Ligation operation?
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The correct answer is  Hunterian ligation (parent vessel occlusion) is generally only considered if occlusion of the aneurysm neck is dangerous or impossible. It reduces flow past the aneurysm, often reducing the size of the lesion and even occasionally causing spontaneous thrombosis. Ref: Neurosurgery: Principles and Practice By Anne J. Moore, David W. Newell, 2005, Page 323.