Fungal pneumonia mimicking lung cancer

A 55-year-old woman with uncontrolled diabetes presented with a persistent cough and low-grade fever for one month. Initial investigations revealed leukocytosis, elevated CRP, and a 6.1 cm × 5.8 cm mass in the left lung with features suggestive of malignancy on CT and PET/CT scans. However, bronchos...

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Main Authors: Chengtao Feng, Zhihong Zhao, Sheng Zhao, Zhiyong Deng, Long Chen
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:IDCases
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Online Access:http://www.sciencedirect.com/science/article/pii/S2214250925001234
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author Chengtao Feng
Zhihong Zhao
Sheng Zhao
Zhiyong Deng
Long Chen
author_facet Chengtao Feng
Zhihong Zhao
Sheng Zhao
Zhiyong Deng
Long Chen
author_sort Chengtao Feng
collection DOAJ
description A 55-year-old woman with uncontrolled diabetes presented with a persistent cough and low-grade fever for one month. Initial investigations revealed leukocytosis, elevated CRP, and a 6.1 cm × 5.8 cm mass in the left lung with features suggestive of malignancy on CT and PET/CT scans. However, bronchoscopy and histopathology confirmed a pulmonary fungal infection. The patient was treated with antifungal therapy, showing a favorable response with resolution of symptoms and reduction of the mass size. This case highlights the diagnostic challenges in distinguishing pulmonary fungal infections from malignancies, especially in immunocompromised patients with diabetes. The presence of diabetes contributed to the patient’s susceptibility to fungal infections, which mimicked lung cancer on imaging. The importance of maintaining a broad differential diagnosis, including fungal infections, in patients with risk factors and atypical imaging findings is emphasized. Early suspicion and appropriate antifungal therapy are crucial to avoid misdiagnosis and improve outcomes.
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series IDCases
spelling doaj-art-cb4dff21207a4bcf84cd5be8e3c496cd2025-08-20T02:05:17ZengElsevierIDCases2214-25092025-01-0140e0226710.1016/j.idcr.2025.e02267Fungal pneumonia mimicking lung cancerChengtao Feng0Zhihong Zhao1Sheng Zhao2Zhiyong Deng3Long Chen4Department of Nuclear Medicine, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Peking University Cancer Hospital Yunnan, People's Republic of ChinaDepartment of Information, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Peking University Cancer Hospital Yunnan, People's Republic of ChinaDepartment of Nuclear Medicine, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Peking University Cancer Hospital Yunnan, People's Republic of ChinaDepartment of Nuclear Medicine, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Peking University Cancer Hospital Yunnan, People's Republic of China; Correspondence to: No. 519 Kunzhou Road, Xishan District, Kunming, Yunnan 650118, People's Republic of China.Department of Nuclear Medicine, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Peking University Cancer Hospital Yunnan, People's Republic of China; Correspondence to: No. 519 Kunzhou Road, Xishan District, Kunming, Yunnan 650118, People's Republic of China.A 55-year-old woman with uncontrolled diabetes presented with a persistent cough and low-grade fever for one month. Initial investigations revealed leukocytosis, elevated CRP, and a 6.1 cm × 5.8 cm mass in the left lung with features suggestive of malignancy on CT and PET/CT scans. However, bronchoscopy and histopathology confirmed a pulmonary fungal infection. The patient was treated with antifungal therapy, showing a favorable response with resolution of symptoms and reduction of the mass size. This case highlights the diagnostic challenges in distinguishing pulmonary fungal infections from malignancies, especially in immunocompromised patients with diabetes. The presence of diabetes contributed to the patient’s susceptibility to fungal infections, which mimicked lung cancer on imaging. The importance of maintaining a broad differential diagnosis, including fungal infections, in patients with risk factors and atypical imaging findings is emphasized. Early suspicion and appropriate antifungal therapy are crucial to avoid misdiagnosis and improve outcomes.http://www.sciencedirect.com/science/article/pii/S2214250925001234Fungal pneumoniaLung cancer18F-FDG PET/CT
spellingShingle Chengtao Feng
Zhihong Zhao
Sheng Zhao
Zhiyong Deng
Long Chen
Fungal pneumonia mimicking lung cancer
IDCases
Fungal pneumonia
Lung cancer
18F-FDG PET/CT
title Fungal pneumonia mimicking lung cancer
title_full Fungal pneumonia mimicking lung cancer
title_fullStr Fungal pneumonia mimicking lung cancer
title_full_unstemmed Fungal pneumonia mimicking lung cancer
title_short Fungal pneumonia mimicking lung cancer
title_sort fungal pneumonia mimicking lung cancer
topic Fungal pneumonia
Lung cancer
18F-FDG PET/CT
url http://www.sciencedirect.com/science/article/pii/S2214250925001234
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AT shengzhao fungalpneumoniamimickinglungcancer
AT zhiyongdeng fungalpneumoniamimickinglungcancer
AT longchen fungalpneumoniamimickinglungcancer