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[Amebiasis of the central nervous system: report of six cases in Peru]

Enrique Orrego-Puelles1, Sandro Casavilca1, Fausto J Rodríguez2

  • 1Instituto Nacional de Enfermedades Neoplásicas, Lima, Perú

Revista Peruana De Medicina Experimental Y Salud Publica
|November 19, 2015
PubMed

Insights

Amoebic encephalitis can mimic brain tumors, leading to delayed diagnosis and treatment. This study highlights six Peruvian cases misdiagnosed as neoplasms, all resulting in rapid mortality.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Pathology

Background:

  • Amoebic encephalitis is a rare but severe central nervous system infection.
  • Distinguishing it from primary brain tumors is crucial for timely intervention.

Observation:

  • Six cases of amoebic encephalitis in Peru (1994-2010) were initially suspected as brain tumors or sarcomas.
  • Common symptoms included headache and seizures, with multiple brain lesions observed in some patients.
  • Stereotactic biopsy revealed differential diagnoses of high and low-grade glioma in two cases.

Findings:

  • Molecular techniques confirmed amoebic encephalitis in paraffin-embedded samples.
  • All six patients, predominantly young males from coastal regions, died within 15 days of admission.
  • The clinical presentation and imaging findings frequently mimicked cerebral neoplasms.

Implications:

  • Amoebic encephalitis poses a diagnostic challenge, often leading to delayed treatment due to misinterpretation as a neoplastic process.
  • Increased awareness and specific diagnostic approaches are needed to differentiate infectious etiologies from brain tumors.
  • Prompt recognition and management of amoebic encephalitis are critical to improve patient outcomes.

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