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Endobronchial pulmonary actinomycosis secondary to broncholithiasis:a case report and imaging-based differential diagnosis Taichi Ide 1 1Department of Radiology Faculty of Medicine, Fukuoka University Keyword: 肺放線菌症 , 気管支結石 pp.813-818
Published Date 2026/9/10
DOI https://doi.org/10.18888/rp.0000003208
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We report a case of pulmonary actinomycosis secondary to pre-existing broncholithiasis. Computed tomography(CT)revealed a spindle-shaped mass enveloping the stone and progressing along the bronchovascular bundle. This characteristic morphology, combined with numerous internal microabscesses, was instrumental in the diagnosis. Although pulmonary actinomycosis often mimics lung cancer, recognizing its unique growth pattern and the clinicoradiological dissociation―characterized by severe chest pain despite only minimal pleural contact―is crucial for differentiation. This case highlights the importance of identifying specific imaging features of endobronchial actinomycosis. We present this case with a brief literature review, focusing on its distinctive evolutionary process.


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電子版ISSN 印刷版ISSN 0009-9252 金原出版

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