Hummingbird Sign and Squint Eyes

Hummingbird sign in progressive supranuclear palsy disease

Progressive supranuclear palsy (PSP) is characterized by slowness, rigidity, bradykinesia, repeated falls, downgaze limitation and dementia. Midbrain atrophy on magnetic resonance imaging is highly suggestive of PSP and is described as "hummingbird sign". This sign is very helpful in differentiating PSP patients from those with Parkinson's disease.We hereby report a 72-year-old female case of P...

'Hummingbird sign', 'penguin sign' and 'Mickey mouse sign' in progressive supranuclear palsy.

Fig 1: Midsagittal section through brainstem showing prominent midbrain atrophy without pontine atrophy resembling a hummingbird (arrow showing the beak) and a penguin Fig 2: Axial MRI showing selective atrophy of the midbrain tegmentum, with relative preservation of the tectum and cerebral peduncles resembling Mickeymouse (Arrow) A fifty year old male was brought by his wife with insidious ons...

‘Hummingbird’ Sign in a Patient with Guam Parkinsonism-Dementia Complex

We present a case of a 71-year-old male Chamorro patient from Guam who presented with progressive supranuclear palsy (PSP)-Richardson's syndrome. Considering his strong family history of parkinsonism and a PSP phenotype, he was clinically diagnosed with Guam parkinsonism-dementia complex (PDC). Magnetic resonance imaging (MRI) of the brain revealed prominent midbrain atrophy with preserved pont...

Squint

Squint

The investigation and treatment of strabismus take up a high proportion 0 ophthalmologist's time. Its treatment is rewarding for the patients are often chi^ in whom the prevention of amblyopia, restoration of binocular vision and imp^ ment in appearance will be of great benefit for the remainder of their lives-j assessment of a diplopic patient is an interesting exercise and may contribute mu a...