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Updated: Jul 5, 2026

Microbiological Rapid On-Site Evaluation for Pulmonary Infectious Diseases
Published on: March 1, 2024
Disseminated nocardiosis with psoas abscess in a patient with AIDS: first reported case
Marcelo Corti1, Rubén Solari, Luis De Carolis
1Division of HIV/AIDS Disease, F.J. Muñiz Infectious Diseases Hospital, Buenos Aires, Argentina.
Abstract:
Psoas muscle abscess is an uncommon infection that have been diagnosed increasingly in the last years. We present a case of a patient with advanced human immunodeficiency virus infection who developed a disseminated infection due to Nocardia asteroides sensu stricto type VI with psoas abscess. To our knowledge no other cases of Nocardia psoas abscess in the setting of HIV infection have been reported in the literature.
Insights
Psoas muscle abscess is a rare infection. This case highlights a disseminated Nocardia asteroides infection with psoas abscess in a patient with advanced human immunodeficiency virus (HIV).
Area of Science:
- Medical Microbiology
- Infectious Diseases
- Immunology
Background:
- Psoas muscle abscess is an uncommon infection with increasing diagnoses.
- Advanced human immunodeficiency virus (HIV) infection compromises the immune system, increasing susceptibility to opportunistic infections.
Observation:
- A case of disseminated Nocardia asteroides infection was observed.
- The infection manifested as a psoas abscess in a patient with advanced HIV.
Findings:
- Nocardia asteroides sensu stricto type VI was identified as the causative agent.
- This represents the first reported case of Nocardia psoas abscess in the context of HIV infection.
Implications:
- This case underscores the importance of considering Nocardia species in disseminated infections in immunocompromised patients, particularly those with HIV.
- Early recognition and diagnosis of Nocardia infections are crucial for effective management in HIV-positive individuals.
- Further research may be warranted to understand the specific pathogenesis and optimal treatment strategies for Nocardia infections in advanced HIV.
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