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Updated: Jul 4, 2026

Isolation of Culturable Yeasts and Molds from Soils to Investigate Fungal Population Structure
Published on: May 27, 2022
An unusual association between Mycobacterium tuberculosis and Aspergillus fumigatus
R Agarwal1, N Singh, A N Aggarwal
1Department of Pulmonary Medicine, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India. riteshpgi@gmail.com
Abstract:
Allergic bronchopulmonary aspergillosis (ABPA) is rarely described outside the setting of asthma or cystic fibrosis. The occurrence of ABPA in other structural lung diseases included scars of old healed pulmonary tuberculosis (PTB) is also unknown. In this case, we report a 62-year old lady treated for PTB 40 years ago who presented with increasing dyspnea on exertion, cough with expectoration of blackish brown mucus plugs and wheezing. High-resolution computed tomographic scan of the thorax showed parenchymal fibrosis and volume loss in left upper lobe while central bronchiectasis, mosaic attenuation, centrilobular nodules with a tree-in-bud pattern were observed in the other lobes. Investigations revealed a diagnosis of ABPA. The patient was treated with prednisolone and showed a significant response. We review the current literature on this unusual association of previous and cured TB with ABPA, and also discuss the hypothesis of this possible relationship.
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Fungal Phylum Ascomycota
Tuberculosis
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...
Bacterial Phylum Actinobacteria
Fungal Group Zygomycota
