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[Cryptococcus neoformans meningoencephalitis and multiple infections in AIDS].

W G Zoller1, H Kellner, F D Goebel

  • 1Medizinische Poliklinik der Universität München.

Klinische Wochenschrift
|June 1, 1989
PubMed
Summary

This case study highlights a fatal CNS disease in an AIDS patient, initially presenting as Cryptococcus neoformans infection but later revealed as Toxoplasma encephalitis and CMV infection. Early respiratory screening for Cryptococcus neoformans is crucial in immunocompromised patients.

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Area of Science:

  • Infectious Diseases
  • Immunocompromised Hosts
  • Clinical Case Study

Background:

  • Pneumocystis carinii pneumonia (PCP) is a common opportunistic infection in AIDS patients.
  • Cryptococcus neoformans and Toxoplasma encephalitis are serious opportunistic infections in individuals with advanced HIV/AIDS.
  • Central nervous system (CNS) involvement significantly increases morbidity and mortality in AIDS patients.

Observation:

  • A 40-year-old homosexual male with AIDS, recovering from PCP, developed CNS cryptococcosis successfully treated with amphotericin B and flucytosine.
  • Following a 4.5-month symptom-free interval, the patient experienced a new, fatal acute CNS disease.
  • Autopsy revealed necrotizing Toxoplasma encephalitis and cytomegalovirus (CMV) infection, with Staphylococcus aureus found in multiple organs; no evidence of Cryptococcus neoformans relapse was found.

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Findings:

  • The fatal CNS disease was attributed to Toxoplasma encephalitis and CMV infection, not a relapse of Cryptococcus neoformans.
  • Staphylococcus aureus was identified as a significant finding across multiple organs in the terminal phase.
  • Histological and cultural examination failed to detect Cryptococcus neoformans in the CNS or other organs during the fatal illness.

Implications:

  • This case underscores the complex and evolving nature of opportunistic infections in advanced AIDS.
  • It highlights the importance of comprehensive diagnostic workup, including cultures and histology, to differentiate between opportunistic infections.
  • The study emphasizes the need for early and specific cultural examination of respiratory specimens for Cryptococcus neoformans during or after PCP treatment to detect primary infections before dissemination.