Acute and subacute akinetic-rigid parkinsonian syndrome mimicking a meningoencephalitis

S Maurri1, C Groppi, P Marini

  • 1Istituto delle Malattie Nervose e Mentali, Università di Firenze.

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.

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