Related Experiment Video
Updated: Feb 12, 2026

Author Spotlight: Advancing 3D Modeling for Enhanced Diagnosis and Treatment of Pulmonary Nodules in Early-Stage Lung Cancer
Published on: October 13, 2023
Pulmonary cryptococcal infection presenting with multiple lung nodules
Thilini L Basnayake1,2, Aijye Lim3, Bart J Currie4,5
1Department of Respiratory and Sleep Medicine, Royal Darwin Hospital, Darwin, NT, Australia.
Abstract:
Pulmonary infections from the environmental fungus Cryptococcus gattii (C. gattii) are notable for cryptococcomas, which are usually solitary and can be very large. As with infections with Cryptococcus neoformans (C. neoformans) patients can have concomitant cryptococcal meningitis; however, unlike for C. neoformans, infections with C. gattii often occur in immunocompetent patients. The highest published incidence of C. gattii infection has been in the Indigenous Australian population of Arnhem Land in the tropical north of the country. More recently C. gattii has been responsible for outbreaks of cryptococcosis in the Pacific Northwest of Canada and the United States of America (USA). A previously healthy Indigenous male from Arnhem Land presented with pulmonary cryptococcosis with chest imaging showing >50 bilateral lung nodules. This unusual occurrence was attributed to probable inhalation of fungal elements from prior use of a high-pressure leaf blower to clear eucalyptus and other debris in a remote bush camp.
Insights
Cryptococcus gattii causes pulmonary infections, sometimes presenting as large lung masses. This fungus, unlike Cryptococcus neoformans, often affects healthy individuals, particularly in Australia.
Area of Science:
- Mycology
- Infectious Diseases
- Pulmonology
Background:
- Cryptococcus gattii (C. gattii) is an environmental fungus causing pulmonary infections, often presenting as large cryptococcomas.
- Unlike Cryptococcus neoformans (C. neoformans), C. gattii infections frequently occur in immunocompetent individuals.
- The highest incidence of C. gattii infection is reported in Indigenous Australians from Arnhem Land, with recent outbreaks in the Pacific Northwest (USA/Canada).
Related Concept Videos
Lung Capacity
Multiple Allele Traits
Multiple Regression
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
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 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 V
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the...

