Parkinson-plus syndromes are neurodegenerative disorders with parkinsonism plus additional features that distinguish them from idiopathic Parkinson’s disease. Early recognition is crucial for prognosis, symptomatic management, and appropriate multidisciplinary care.

Syndrome	🔑 Key Features	🕵️ Diagnostic Clues	💊 Management
👀 Progressive Supranuclear Palsy (PSP)	• Early postural instability → backward falls • Vertical gaze palsy (downward > upward) is hallmark • Axial rigidity > limb rigidity • Frontal cognitive changes: apathy, executive dysfunction • Dysarthria & dysphagia early	• MRI: “Hummingbird sign” – midbrain atrophy • Clinical: early falls, vertical gaze limitation • Eye movement testing: slowed saccades, impaired voluntary gaze	• Limited levodopa response • Physiotherapy: balance & gait training • OT & speech therapy: swallowing, communication • Multidisciplinary palliative/supportive care
🫀 Multiple System Atrophy (MSA)	• Parkinsonism: often symmetrical • Early autonomic failure: orthostatic hypotension, urinary incontinence, erectile dysfunction • Cerebellar features: ataxia, dysarthria • Pyramidal signs: spasticity, brisk reflexes	• MRI: “Hot cross bun sign” – pontocerebellar atrophy • Autonomic testing: tilt-table, post-void residuals • Poor levodopa responsiveness distinguishes from idiopathic PD	• Symptomatic management: midodrine/fludrocortisone for orthostatic hypotension • Bladder care: intermittent catheterisation if needed • Physiotherapy: gait & balance • Supportive MDT care: speech, nutrition, palliative planning
✋ Corticobasal Degeneration (CBD)	• Asymmetric limb rigidity & dystonia • Alien limb phenomenon – involuntary, purposeful movements • Cortical sensory loss, apraxia • Cognitive decline: executive dysfunction	• Clinically asymmetric parkinsonism • Neuroimaging: asymmetric cortical atrophy • Levodopa response poor • Alien limb & apraxia are strong differentiators	• Levodopa generally ineffective • Physiotherapy/OT: limb coordination, mobility, adaptive devices • Speech therapy for dysarthria • Cognitive & caregiver support; MDT approach
🌙 Lewy Body Dementia (LBD)	• Early cognitive impairment: attention, visuospatial, executive • Fluctuating cognition & alertness • Recurrent visual hallucinations • Parkinsonism: bradykinesia, rigidity • REM sleep behaviour disorder (RBD)	• Dementia onset within 12 months of parkinsonism • Neuroimaging: occipital hypometabolism on PET/SPECT • Levodopa may worsen hallucinations • Neuropsychiatric symptoms: depression, anxiety, hallucinations	• AChE inhibitors (rivastigmine) for cognition & hallucinations • Avoid typical antipsychotics ⚠️ (esp. haloperidol); atypicals with caution • Levodopa cautiously if parkinsonism disabling • Melatonin or clonazepam for REM sleep disorder • Supportive MDT care: OT, physiotherapy, caregiver support

💡 Teaching tip: Emphasise early distinguishing features: falls in PSP, autonomic failure in MSA, asymmetric limb & alien limb in CBD, and early dementia with hallucinations in LBD. Early recognition improves symptom-targeted interventions and patient safety.

The content on this website is provided for educational and informational purposes only to support exam preparation (e.g., MLA, MRCP, USMLE) and learning. This is NOT medical advice, diagnosis, treatment, or professional guidance. It does not replace consultation with a qualified healthcare professional, official guidelines (e.g., NICE, GMC, BNF), or supervised clinical practice. Always verify information with current, authoritative sources. Makindo and its contributors accept no liability for any reliance on this content, including errors, omissions, or any resulting harm, loss, or consequences. By using this site, you agree to these terms.

Parkinson Plus syndromes

🧠 Parkinson-Plus Syndromes – Key Clinical Overview

Categories