Fig. 5

Progressive Supranuclear Palsy (PSP). A 79-year-old male with gait ataxia and frequent falls with forgetfulness and loss of interest in routine activity. a sagittal T1W image of the brain shows loss of superior convexity of midbrain: “Humming bird or penguin sign” (white dashed arrow). b axial T1W section of the brain at the level of midbrain reveals abnormal concavity of lateral margin of midbrain: “morning glory sign” (white arrows). c axial FLAIR imaging of brain is demonstrating decreased anteroposterior diameter of midbrain (white dashed arrow)