, Volume 45, Issue 5, pp 715–718 | Cite as

Survival of an AIDS patient after infection with Acanthamoeba sp. of the central nervous system

  • Hana El SahlyEmail author
  • Michelle Udayamurthy
  • George Parkerson
  • Rodrigo Hasbun
Case Report


Case description

A 38-year-old man presented with headaches and generalized weakness. He was found to have AIDS; a ring-enhancing central nervous system lesion was found on brain imaging and he had elevated serum Toxoplasma gondii IgG levels. A diagnosis of presumptive toxoplasma encephalitis was made and he received antiretrovirals and antitoxoplasma therapy for 4 years. Intermittent headaches and evidence of disease progression on neuroimaging warranted further evaluation and cerebrospinal fluid analysis revealed amebic forms on hematoxylin and eosin staining and positive polymerase chain reaction testing for Acanthamoeba spp. He was placed on miltefosine, fluconazole, trimethoprim-sulfamethoxazole and flucytosine for 7 months. Five months after therapy discontinuation he remains asymptomatic and is taking only antiretroviral therapy.


This is the first report of a patient with AIDS and granulomatous amebic encephalitis who survived with medical therapy only.


AIDS Granulomatous amebic encephalitis Acanthamoeba species 


Compliance with ethical standards

Conflict of interest

The authors report no conflict of interest pertaining to the content of this manuscript.


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Copyright information

© Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  1. 1.Department of Molecular Virology and MicrobiologyBaylor College of MedicineHoustonUSA
  2. 2.Section of Infectious Diseases, Department of MedicineBaylor College of MedicineHoustonUSA
  3. 3.Section of Infectious Diseases, Department of MedicineUniversity of Texas Health Sciences CenterHoustonUSA

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