system
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.
user
Medusa head appearance on MRI is seen in
assistant
The correct answer is  Veins are small at periphery and gradually enlarge as they approach a central draining vein - caput medusa or medua head.
serpentine apperance of the curvilinear peripheral draining veins seen in venous malformation (venous angioma).