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Necrotizing pneumonia and empyema in an immunocompetent patient caused by Nocardia cyriacigeorgica and identified by 16S rRNA and secA1 sequencing

Nocardiosis is a rare and potentially life-threatening infection. Nocardia species are a group of aerobic actinomycetes, which are filamentous, branching, gram-positive, and acid-fast bacilli [1]. Worldwide, respiratory and disseminated infections are most often due to N. asteroids complex, which is...

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Published in:Annals of laboratory medicine 2014, 34(1), , pp.71-75
Main Authors: Yi, Changmin, Kwon, Min-Jung, Ki, Chang-Seok, Lee, Nam Yong, Joo, Eun-Jeong, Yeom, Joon-Sup, Woo, Hee-Yeon, Park, Hyosoon
Format: Article
Language:English
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Summary:Nocardiosis is a rare and potentially life-threatening infection. Nocardia species are a group of aerobic actinomycetes, which are filamentous, branching, gram-positive, and acid-fast bacilli [1]. Worldwide, respiratory and disseminated infections are most often due to N. asteroids complex, which is increasingly recog- nized as an opportunistic infection in immunocompromised hosts with underlying HIV infection, neoplastic disease, or long- term high-dose corticosteroid therapy [2]. Recently, infection of N. cyriacigeorgica was reported in an immunocompromised pa- tient in Korea, which was identified by 16S rRNA sequencing analysis and additional biochemical tests combined to draw a conclusion [3]. Here, we describe a case of necrotizing pneu- monia and empyema caused by N. cyriacigeorgica in a 77-yr- old Korean male patient who was immunocompetent. This case was diagnosed by DNA amplification and sequence analyses of the 16S rRNA and secA1 genes. KCI Citation Count: 1
ISSN:2234-3806
2234-3814
DOI:10.3343/alm.2014.34.1.71