Related Experiment Video
Updated: Sep 24, 2025

Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
Published on: June 16, 2020
[Histoplasmosis in a patient with sarcoidosis]
Hilde M Wesselius1,2, Arthur Lieveld1, Karin van Dijk3
1Amsterdam UMC, afd. Interne Geneeskunde, Amsterdam.
Background:
Histoplasmosis is an infection caused by inhalation of spores of the fungus Histoplasma capsulatum. H. capsulatum is not present in the Netherlands but can cause severe disseminated disease in the immunocompromised traveller, with high mortality rate, especially when diagnosis is delayed. Therefore, early recognition is crucial. However, similarities with other infectious diseases, haematological malignancies and auto-immune diseases make timely diagnosis difficult.
Case Description:
We present a case of a 39-year-old immunocompromised male traveller who presented with disseminated histoplasmosis after a trip to Central America. The diagnosis was made a few months after the first symptoms occurred. He died despite adequate treatment with liposomal amphotericin B.
Conclusion:
Disseminated histoplasmosis should be considered as a cause of unexplained fever in immunocompromised patients who travelled to endemic regions. Mortality is high, even when properly treated. Early recognition and treatment improve outcome.
Insights
Disseminated histoplasmosis is a severe fungal infection in immunocompromised travelers. Early diagnosis and treatment are crucial for improving outcomes in this high-mortality disease.
Area of Science:
- Mycology
- Infectious Diseases
- Immunology
Background:
- Histoplasmosis, caused by Histoplasma capsulatum spores, is a rare but severe infection in immunocompromised individuals.
- The fungus is not endemic to the Netherlands, but imported cases can lead to disseminated disease with significant mortality.
- Delayed diagnosis is common due to overlapping symptoms with other conditions, complicating early recognition.
Observation:
- A case report details a 39-year-old immunocompromised male traveler diagnosed with disseminated histoplasmosis.
- The patient had recently traveled to Central America, an endemic region for Histoplasma capsulatum.
- Diagnosis was delayed by several months after symptom onset.
Findings:
- The patient received adequate treatment with liposomal amphotericin B.
- Despite treatment, the patient succumbed to the disseminated infection.
- This case highlights the challenges in diagnosing histoplasmosis in travelers.
Implications:
- Disseminated histoplasmosis must be considered in immunocompromised patients presenting with unexplained fever after travel to endemic areas.
- Prompt recognition and initiation of treatment are vital for improving patient outcomes.
- Healthcare providers should maintain a high index of suspicion for this potentially fatal infection.
Related Concept Videos
Pulmonary Tuberculosis II
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
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...
Pulmonary Tuberculosis III
The first classification is based on the development of the disease, and it includes the following categories:
Fungal Phylum Microsporidia
Skin Diseases and Disorders
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...

