This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuroradiology, Subject name: Radiology
A 50 year old man came to the neurology OPD with chief complaints of ataxia and abnormal eye movements. On examination, veical gaze palsy is seen. A MRI was performed . What is the possible diagnosis? 
Select and explain. 
A. Multiple system atrophy-Cerebellar type, B. Parkinsonism, C. Cerebellar ataxia, D. Progressive supra-nuclear palsy
D: Progressive supra-nuclear palsy
Answer: D: Progressive supra-nuclear palsy 
Explanation: HUMMING BIRD SIGN and MICKEY MOUSE SIGN are features of Progressive supranuclear palsy. Figure showing Humming bird sign in Progressive supranuclear palsy. Figure showing Mickey-Mouse sign in Progressive supranuclear palsy.