Medical Mnemonics Learn Hummingbird sign in Progressive supra | Medical Mnemonics
Medical Mnemonics
Learn Hummingbird sign in Progressive supranuclear palsy (PSP) by #visual_mnemonics.
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Progressive supranuclear palsy (PSP) is a neurodegenerative disorder characterized by supranuclear vertical gaze palsy, postural instability and falls, parkinsonian features, speech disturbance, and cognitive impairment. The hummingbird sign in brain MRI is an interesting radiological sign in the patients with PSP. It is due to atrophy of the midbrain and relative lengthening of the interpeduncular fossa and preserved pons.
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