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Updated: May 30, 2026

Metagenomic Next-Generation Sequencing of Cerebrospinal Fluid for the Detection of Central Nervous System Pathogens
10:08

Metagenomic Next-Generation Sequencing of Cerebrospinal Fluid for the Detection of Central Nervous System Pathogens

Published on: April 17, 2026

Diagnostic difficulties with central nervous system actinomycosis

Michele Bellesi1, Paolo Di Bella, Leandro Provinciali

  • 1Department of Neuroscience, Università Politecnica delle Marche, Via Tronto 10/A, Torrette di Ancona, 60020 Ancona, Italy. michele.bellesi@univpm.it

Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology
|August 9, 2011
PubMed

Insights

Central nervous system actinomycosis is an insidious infection that can mimic other brain lesions. Early diagnosis is crucial for effective treatment and improved patient outcomes.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Radiology

Background:

  • Ring-enhancing brain lesions require careful differential diagnosis.
  • Actinomycosis is a rare but treatable infection that can affect the central nervous system.
  • Diagnostic challenges arise due to the insidious nature and infrequent presentation of CNS actinomycosis.

Observation:

  • A case of central nervous system actinomycosis presented with difficulties in diagnosis.
  • The lesion exhibited ring-enhancement on post-contrast imaging, a common but non-specific finding.
  • The insidious nature of actinomycosis posed a diagnostic pitfall.

Findings:

  • Central nervous system actinomycosis can mimic other expanding brain lesions.
  • Delayed diagnosis of actinomycosis can lead to significant morbidity.
  • Definite diagnostic criteria are essential for distinguishing actinomycosis from other conditions.

Implications:

  • Increased awareness of actinomycosis is needed among clinicians.
  • Radiological findings of ring-enhancement warrant consideration of infectious etiologies like actinomycosis.
  • Timely diagnosis and treatment of CNS actinomycosis are critical for favorable prognoses.

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