Medusa head appearance on MRI is seen in: (A) AV malformation, (B) Venous angioma, (C) Cavernous hemangioma, (D) Vein of galen malformation
Answer is B. 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).