Related Experiment Video
Updated: Jun 19, 2026

Passive Administration of Monoclonal Antibodies Against H. capsulatum and Others Fungal Pathogens
Published on: February 14, 2011
Disseminated histoplasmosis in AIDS: a report of three patients
H J Tan1, I Cheong, W M Muhaizan
1Department of Medicine, Faculty of Medicine, Hospital Universiti Kebangsaan Malaysian, Jalan Tenteram, Cheras, 56000 Kuala Lumpur.
Abstract:
Histoplasmosis is a fungal infection caused by Histoplasma capsulatum. Although uncommon, it should be considered among the list of important opportunistic infections in severely immunocompromised patients. Patients living with AIDS are at particular risk of disseminated histoplasmosis. Diagnosis requires a high level of clinical suspicion. The infection is best confirmed by demonstration of the organism in tissue specimens or by culture. Amphotericin B is the most effective drug for severe disseminated histoplasmosis. Response is good but life-long maintenance is required to prevent relapse.
Insights
Histoplasmosis, a fungal infection, is a serious opportunistic infection for immunocompromised individuals, especially those with AIDS. Early diagnosis and treatment with Amphotericin B are crucial, often requiring lifelong maintenance therapy to prevent recurrence.
Area of Science:
- Mycology
- Infectious Diseases
- Immunocompromised Host Research
Background:
- Histoplasmosis is a fungal infection caused by Histoplasma capsulatum.
- It is considered an important opportunistic infection in severely immunocompromised patients.
- Individuals living with acquired immunodeficiency syndrome (AIDS) face a heightened risk of disseminated histoplasmosis.
Observation:
- Diagnosis of histoplasmosis necessitates a high degree of clinical suspicion.
- Confirmation of infection is achieved through the identification of Histoplasma capsulatum in tissue specimens or via culture.
- Severe disseminated histoplasmosis requires prompt and effective treatment.
Findings:
- Amphotericin B is identified as the most effective therapeutic agent for severe disseminated histoplasmosis.
- While treatment response is generally good, long-term maintenance therapy is essential.
- Lifelong maintenance is required to prevent relapse of the infection.
Implications:
- This highlights the critical need for vigilance in diagnosing and managing histoplasmosis in at-risk populations.
- Effective treatment strategies, including Amphotericin B and maintenance therapy, are vital for patient outcomes.
- Understanding the risk factors and diagnostic challenges is key to improving patient care for this opportunistic fungal infection.
Related Concept Videos
Cryptococcal Meningitis
Pulmonary Tuberculosis I
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Amebiasis
Sexually Transmitted Infections
Pulmonary Tuberculosis III
The first classification is based on the development of the disease, and it includes the following categories:
Toxoplasmosis
