Related Experiment Video
Updated: May 10, 2026

Construction of An Orthotopic Xenograft Model of Non-Small Cell Lung Cancer Mimicking Disease Progression and Predicting Drug Activities
Published on: May 10, 2024
Aspergilloma mimicking a lung cancer
Manabu Yasuda1, Akira Nagashima, Akira Haro
1Department of Chest Surgery, Kitakyushu Municipal Medical Center, Japan.
Introduction:
Pulmonary aspergillosis occurs in the parenchymal cavities or ectatic airways. It rarely affects healthy people with an intact immune response. There have been few reports describing an aspergilloma mimicking a lung cancer.
Presentation Of Case:
We experienced the case of an asymptomatic healthy 71-year-old female who was admitted with an abnormal lung shadow. Chest CT revealed an irregularly shaped solid lung nodule in the left upper lobe, which increased in size during the follow-up at a regional hospital. The pathology of the bronchial biopsy was negative for malignant cells, and the cultures were negative. Because a lung cancer was strongly suspected, video-assisted thoracic surgery was performed. Aspergillus was detected by a pathological study of the excised specimen, with no evidence of lung cancer.
Discussion:
It is difficult to make an accurate diagnosis of aspergilloma by imaging findings in healthy people with an intact immune response, and therefore a surgical resection allows both the pathological diagnosis and treatment to be performed concurrently.
Conclusion:
An aspergilloma presenting a mass shadow on imaging may mimic a lung cancer in healthy people with intact immune response.
