[Cognitive impairment? Don't forget neurolues].

Ned Tijdschr Geneeskd

Rijnstate, afd. Neurologie,Arnhem.

Published: August 2024

AI Article Synopsis

  • Cognitive disorders typically develop slowly due to chronic neurodegenerative diseases, but rapid progression may indicate treatable conditions requiring quick diagnosis.
  • A 68-year-old man presented with a few weeks of worsening cognitive impairment; MRI scans revealed specific brain changes leading to diagnosis and treatment for neurolues after initial misdiagnosis of herpesencephalitis and autoimmune encephalitis.
  • The case highlights the challenges in diagnosing neurolues, which can mimic other conditions, emphasizing the need for timely recognition to avoid lasting harm.

Article Abstract

Background: Cognitive disorders usually develop slowly over years and are mainly caused by untreatable neurodegenerative disorders. Rapidly progressive cognitive disorders should raise suspicion of an underlying and treatable psychiatric, internal or neurological condition. Timely recognition of these conditions is important.

Case: We present the case of a 68-year old man, presenting on the emergency department with a history of progressive cognitive impairment since several weeks. Cerebral MRI showed T2-hyperintensities in the left hippocampal, mesotemporal and insular regions; lesser so in the right mesotemporal region. After initial treatment for herpesencephalitis and autoimmune encephalitis, we diagnosed neurolues and started treatment with benzylpenicillin.

Conclusion: It may be difficult to diagnose neurolues because the vast variety of clinical symptoms and radiological signs. This case shows that neurolues should be considered in a patient with rapidly progressive cognitive disorders and that neurolues can mimic a herpesencephalitis or an autoimmune encephalitis. Timely recognition is important to prevent irreversible damage.

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