<prompt> 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?Multiple system atrophy-Cerebellar typeParkinsonismCerebellar ataxiaProgressive supra-nuclear palsy  <response>: 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. 