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. 2013;4(8):690-2.
doi: 10.1016/j.ijscr.2013.02.028. Epub 2013 Apr 18.

Aspergilloma mimicking a lung cancer

Manabu Yasuda  1 , Akira Nagashima, Akira Haro, Genkichi Saitoh
Affiliations

Aspergilloma mimicking a lung cancer

Manabu Yasuda et al. Int J Surg Case Rep. 2013.

Abstract

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.

Keywords: Aspergilloma; Imaging findings; Lung cancer.

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Figures

Fig. 1
Fig. 1
A frontal chest radiograph showed a nodule without a cavitary lesion in the left upper field.
Fig. 2
Fig. 2
Chest CT revealed an irregularly shaped lung nodule approximately 3.0 cm in diameter in the left upper lobe. The nodule also appeared as a solid lesion through the bronchus.
Fig. 3
Fig. 3
Chest CT showed that the nodule increased in size during the follow-up. (A) At the time when the patient was admitted to a regional hospital, (B) after six months of follow-up.
Fig. 4
Fig. 4
The pathological appearance of the tumor demonstrated dichotomously branching hyphae, compatible with Aspergillus (Gomori's methenamine silver nitrate stain; original magnification 400×).
See this image and copyright information in PMC

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