Pulmonary Actinomycosis Masquerading as Malignancy

An 81-year-old ex-smoker with chronic cough and weight loss had imaging showing right upper-lobe nodules, tree-in-bud changes and bronchial obstruction. Bronchoscopy revealed a right upper lobe bronchus polypoidal mass with histological evidence of actinomycosis. This case highlights actinomycosis mimicking malignancy and the need to exclude wider differentials and cancer mimics.

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Publication Details

Journal
Respirology Case Reports
Published
2026-01-30
DOI
https://doi.org/10.1002/rcr2.70493
Primary Topic
Actinomycetales infections and treatment
Type
article
Field-Weighted Citation Impact
0.00
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article

Pulmonary Actinomycosis Masquerading as Malignancy

Himanshu Singh, John Timerick, Sugeesha Wickramasinghe, Irshad Fahd et al.
Respirology Case Reports
Actinomycetales infections and treatment
article

Pulmonary Actinomycosis Masquerading as Malignancy

Himanshu Singh, John Timerick, Sugeesha Wickramasinghe, Irshad Fahd, Deepa Jacob
article en

Abstract

An 81-year-old ex-smoker with chronic cough and weight loss had imaging showing right upper-lobe nodules, tree-in-bud changes and bronchial obstruction. Bronchoscopy revealed a right upper lobe bronchus polypoidal mass with histological evidence of actinomycosis. This case highlights actinomycosis mimicking malignancy and the need to exclude wider differentials and cancer mimics.

Respirology Case ReportsVol. 14(2)
Lancashire Teaching Hospitals NHS Foundation Trust (GB)
Good health and well-being
Openalex Percentile: Top 75%
Actinomycetales infections and treatment
DOIOpen Access PDFOpenAlex
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Pulmonary Actinomycosis Masquerading as Malignancy — Himanshu Singh, John Timerick, et al. · Respirology Case Reports (2026) | TGRS Research Map | TGRS