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Spontaneous brain hemorrhage associated with Lyme neuroborreliosis

M Seijo Martínez1, J Grandes Ibáñez, J Sánchez Herrero

  • 1Servicio de Neurología, Complexo Hospitalario de Pontevedra, Lóureiro Crespo, s/n 36001 Pontevedra. mseijom@meditex.es

Insights

This case study details a rare instance of spontaneous temporal lobe hemorrhage in a patient with late neuroborreliosis (Lyme disease). The findings suggest Lyme-associated vascular damage may cause such hemorrhages.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Vascular Medicine

Background:

  • Lyme disease, a tick-borne illness, can affect the nervous system (neuroborreliosis).
  • While ischemic stroke and subarachnoid hemorrhage are known complications, intraparenchymal brain hemorrhage is not previously documented.
  • Late neuroborreliosis presents diverse neurological manifestations.

Observation:

  • A 48-year-old male with progressive spastic paraparesis presented with acute headache, confusion, hemiparesis, and hemianopsia.
  • Cranial CT revealed a right temporal lobe hemorrhage with subarachnoid invasion.
  • Cerebrospinal fluid (CSF) analysis showed mononuclear pleocytosis and elevated protein levels, with positive anti-Borrelia titers in serum and CSF.

Findings:

  • Brain imaging excluded vascular malformations as the cause of hemorrhage.
  • Positive serum Western Blot confirmed Borrelia infection.
  • The patient received a 4-week course of ceftriaxone with a favorable outcome.

Implications:

  • This case highlights spontaneous intraparenchymal brain hemorrhage as a potential, albeit rare, complication of late neuroborreliosis.
  • Lyme-associated vascular damage or microaneurysmal rupture is suspected as the underlying mechanism.
  • Further research is warranted to understand the neurovascular complications of Lyme disease.

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