Clinical and Computed Tomography Characteristics of Solitary Pulmonary Nodules Caused by Fungi: A Comparative Study

Jin Jiang,1,* Zhuo-ma Lv,1,2,* Fa-jin Lv,1 Bin-jie Fu,1 Zhang-rui Liang,1 Zhi-gang Chu1 1Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China; 2Department of Radiology, The Second People’s Hospital of Yubei Dist...

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Main Authors: Jiang J, Lv ZM, Lv FJ, Fu BJ, Liang ZR, Chu ZG
Format: Article
Language:English
Published: Dove Medical Press 2022-10-01
Series:Infection and Drug Resistance
Subjects:
Online Access:https://www.dovepress.com/clinical-and-computed-tomography-characteristics-of-solitary-pulmonary-peer-reviewed-fulltext-article-IDR
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author Jiang J
Lv ZM
Lv FJ
Fu BJ
Liang ZR
Chu ZG
author_facet Jiang J
Lv ZM
Lv FJ
Fu BJ
Liang ZR
Chu ZG
author_sort Jiang J
collection DOAJ
description Jin Jiang,1,&ast; Zhuo-ma Lv,1,2,&ast; Fa-jin Lv,1 Bin-jie Fu,1 Zhang-rui Liang,1 Zhi-gang Chu1 1Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China; 2Department of Radiology, The Second People’s Hospital of Yubei District, Chongqing, People’s Republic of China&ast;These authors contributed equally to this workCorrespondence: Zhi-gang Chu, Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, 1&num; Youyi Road, Yuanjiagang, Yuzhong district, Chongqing, 400016, People’s Republic of China, Tel +86 18723032809, Fax +86 23 68811487, Email chuzg0815@163.comPurpose: To clarify the clinical and computed tomography (CT) indicators in distinguishing pulmonary nodules caused by fungal infection from lung cancers.Methods: From January 2013 to April 2022, 68 patients with solitary fungal nodules (64 were solid and 4 were mixed ground-glass nodules) and 140 cases with solid cancerous nodules with similar size were enrolled. Their clinical characteristics and CT manifestations of the solid nodules were summarized and compared, respectively.Results: Compared with patients with lung cancers, cases were younger (51.2 ± 11.5 vs 61.3 ± 10.2 years) and non-smokers (72.1% vs 57.9%) and immunocompromised (44.1% vs 17.9%) individuals were more common in patients with fungal nodules (each P < 0.05). The air crescent sign (ACS) (34.4% vs 0%), halo sign (HS) (23.4% vs 4.3%), and satellite lesions (45.3% vs 2.9%) were more frequently detected in fungal nodules than in cancerous ones (each P < 0.05). Air bronchogram similarly occurred in fungal and cancerous nodules, whereas the natural ones were more common in the former (100% vs 16.7%, P = 0.000). However, the fungal nodules had a lower enhancement degree (29.0 ± 19.2 HU vs 40.3 ± 28.3 HU, P = 0.038) and frequency of hilar and/or mediastinal lymph node enlargement (2.9% vs 14.3%, P = 0.013) compared with the cancerous nodules.Conclusion: In the younger, non-smoking and immunocompromised patients, a solitary pulmonary solid nodule with ACS, HS, satellite lesions and/or natural air bronchogram but without significant enhancement, fungal infection is a probable diagnosis.Keywords: tomography, X-ray computed, pulmonary nodules, fungal infection
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spelling doaj.art-dd86d4d0bdc5468e82ff110a69403e8e2022-12-22T04:32:06ZengDove Medical PressInfection and Drug Resistance1178-69732022-10-01Volume 156019602879053Clinical and Computed Tomography Characteristics of Solitary Pulmonary Nodules Caused by Fungi: A Comparative StudyJiang JLv ZMLv FJFu BJLiang ZRChu ZGJin Jiang,1,&ast; Zhuo-ma Lv,1,2,&ast; Fa-jin Lv,1 Bin-jie Fu,1 Zhang-rui Liang,1 Zhi-gang Chu1 1Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China; 2Department of Radiology, The Second People’s Hospital of Yubei District, Chongqing, People’s Republic of China&ast;These authors contributed equally to this workCorrespondence: Zhi-gang Chu, Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, 1&num; Youyi Road, Yuanjiagang, Yuzhong district, Chongqing, 400016, People’s Republic of China, Tel +86 18723032809, Fax +86 23 68811487, Email chuzg0815@163.comPurpose: To clarify the clinical and computed tomography (CT) indicators in distinguishing pulmonary nodules caused by fungal infection from lung cancers.Methods: From January 2013 to April 2022, 68 patients with solitary fungal nodules (64 were solid and 4 were mixed ground-glass nodules) and 140 cases with solid cancerous nodules with similar size were enrolled. Their clinical characteristics and CT manifestations of the solid nodules were summarized and compared, respectively.Results: Compared with patients with lung cancers, cases were younger (51.2 ± 11.5 vs 61.3 ± 10.2 years) and non-smokers (72.1% vs 57.9%) and immunocompromised (44.1% vs 17.9%) individuals were more common in patients with fungal nodules (each P < 0.05). The air crescent sign (ACS) (34.4% vs 0%), halo sign (HS) (23.4% vs 4.3%), and satellite lesions (45.3% vs 2.9%) were more frequently detected in fungal nodules than in cancerous ones (each P < 0.05). Air bronchogram similarly occurred in fungal and cancerous nodules, whereas the natural ones were more common in the former (100% vs 16.7%, P = 0.000). However, the fungal nodules had a lower enhancement degree (29.0 ± 19.2 HU vs 40.3 ± 28.3 HU, P = 0.038) and frequency of hilar and/or mediastinal lymph node enlargement (2.9% vs 14.3%, P = 0.013) compared with the cancerous nodules.Conclusion: In the younger, non-smoking and immunocompromised patients, a solitary pulmonary solid nodule with ACS, HS, satellite lesions and/or natural air bronchogram but without significant enhancement, fungal infection is a probable diagnosis.Keywords: tomography, X-ray computed, pulmonary nodules, fungal infectionhttps://www.dovepress.com/clinical-and-computed-tomography-characteristics-of-solitary-pulmonary-peer-reviewed-fulltext-article-IDRtomographyx-ray computedpulmonary nodulesfungal infection
spellingShingle Jiang J
Lv ZM
Lv FJ
Fu BJ
Liang ZR
Chu ZG
Clinical and Computed Tomography Characteristics of Solitary Pulmonary Nodules Caused by Fungi: A Comparative Study
Infection and Drug Resistance
tomography
x-ray computed
pulmonary nodules
fungal infection
title Clinical and Computed Tomography Characteristics of Solitary Pulmonary Nodules Caused by Fungi: A Comparative Study
title_full Clinical and Computed Tomography Characteristics of Solitary Pulmonary Nodules Caused by Fungi: A Comparative Study
title_fullStr Clinical and Computed Tomography Characteristics of Solitary Pulmonary Nodules Caused by Fungi: A Comparative Study
title_full_unstemmed Clinical and Computed Tomography Characteristics of Solitary Pulmonary Nodules Caused by Fungi: A Comparative Study
title_short Clinical and Computed Tomography Characteristics of Solitary Pulmonary Nodules Caused by Fungi: A Comparative Study
title_sort clinical and computed tomography characteristics of solitary pulmonary nodules caused by fungi a comparative study
topic tomography
x-ray computed
pulmonary nodules
fungal infection
url https://www.dovepress.com/clinical-and-computed-tomography-characteristics-of-solitary-pulmonary-peer-reviewed-fulltext-article-IDR
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