Eosinophilic meningitis

Organism	Host	Notes
Angiostrongylus cantonensis	rats
Gnathostoma spinigerum	felines and other mammals

Differential Diagnosis

• Parasites
  • Angiostrongylus cantonensis (neurologic angiostrongyliasis)
  • Baylisascaris procyonis (baylisascariasis; neural larva migrans)
  • Gnathostoma spinigerum (neurognathostomiasis)
  • Rare
    • Trichinellosis
    • Echinococcosis
    • Neurocysticercosis
    • Fascioliasis
    • Paragonimiasis
• Other infections
  • Coccidioidomycosis
  • Visceral myiasis (CNS invasion by larvae of cattle botflies)
  • Rarely, viral, rickettsial, and bacterial infections
  • Tuberculosis
  • Lymphocytic choriomeningitis (LCM)
• Non-infectious causes
  • Hypereosinophilic syndrome
  • Hodgkin lymphoma
  • Other lymphoproliferative and malignant diseases
  • Medications
    • Ibuprofen
    • Ciprofloxacin
    • Septra
    • Intraventricular vancomycin or gentamicin
  • Post-contrast myelography
  • Sarcoidosis
  • Cerebral eosinophilic granuloma