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Published on: April 28, 2019
Acute and subacute akinetic-rigid parkinsonian syndrome mimicking a meningoencephalitis
Abstract:
Four cases of acute and subacute akinetic-rigid parkinsonian syndrome are described. The clinical picture initially simulated a meningoencephalitis, which was escluded by the negative CSF findings and the aspecific electroencephalogram. In the first case the parkinsonism was attributable, also on the basis of the autoptic findings, to the prolonged neuroleptic therapy; in the other cases a toxic-infectious condition, through a damage on liver function, revealed a subclinical latent parkinsonian syndrome.
Insights
This study describes four cases of parkinsonian syndrome. Prolonged neuroleptic therapy or toxic-infectious conditions affecting liver function can trigger this syndrome, even in latent cases.
Area of Science:
- Neurology
- Neuroscience
- Clinical Medicine
Background:
- Parkinsonian syndromes can present with diverse clinical features.
- Distinguishing parkinsonism from meningoencephalitis is crucial for accurate diagnosis.
- Subclinical or latent parkinsonism may be unmasked by specific triggers.
Observation:
- Four cases of acute and subacute akinetic-rigid parkinsonian syndrome were observed.
- Initial clinical presentation mimicked meningoencephalitis, but cerebrospinal fluid and EEG findings were negative.
- One case was linked to prolonged neuroleptic therapy, confirmed by autopsy.
- Three cases were associated with toxic-infectious conditions impacting liver function.
Findings:
- Prolonged neuroleptic therapy can induce parkinsonian syndrome.
- Toxic-infectious insults affecting liver function can reveal latent parkinsonism.
- Negative cerebrospinal fluid and non-specific electroencephalogram help rule out meningoencephalitis.
Implications:
- Highlights the importance of considering drug-induced parkinsonism.
- Suggests that liver dysfunction in toxic-infectious diseases may unmask underlying parkinsonian tendencies.
- Emphasizes the need for careful neurological evaluation in patients with atypical presentations.
Related Concept Videos
Parkinson's Disease: Overview
Viral Meningitis
Bacterial Meningitis I: Introduction
Encephalitis l: Introduction
Encephalitis ll: Pathophysiology
Parkinson Disease l: Introduction

