This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Angiography, Subject name: Radiology
Feeding Aery and a well defined nidus is characteristic of? 
Select and explain. 
A. True AV malformation, B. Venous angioma, C. Cavernous angioma, D. Hemangioma
A: True AV malformation
Answer: A: True AV malformation 
Explanation: Feeding Aery and Nidus is seen in True AV malformation Popcorn Appearance in Cavernous Angioma Medusa Head /Spoke wheel pattern in Venous Angioma