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Fusarium falciforme vertebral abscess and osteomyelitis: case report and molecular classification.

ABSTRACT: Fusarium is a ubiquitous mold that can cause superficial infections such as keratitis and onychomycosis in immunocompetent humans; however, infections in immunocompromised hosts can be fatal. We report an unusual case of epidural abscess and vertebral osteomyelitis in a patient with an autoimmune disorder who was on long-term glucocorticoids. Multilocus DNA sequence-based typing revealed that the infection was caused by a novel three-locus haplotype of Fusarium falciforme designated FSSC 3+4qqq.

SUBMITTER: Edupuganti S

PROVIDER: S-EPMC3122754 | biostudies-literature | 2011 Jun

REPOSITORIES: biostudies-literature

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Fusarium falciforme vertebral abscess and osteomyelitis: case report and molecular classification.

Edupuganti Srilatha S Rouphael Nadine N Mehta Aneesh A Eaton Molly M Heller John G JG Bressler Adam A Brandt Mary M O'Donnell Kerry K

Journal of clinical microbiology 20110330 6

Fusarium is a ubiquitous mold that can cause superficial infections such as keratitis and onychomycosis in immunocompetent humans; however, infections in immunocompromised hosts can be fatal. We report an unusual case of epidural abscess and vertebral osteomyelitis in a patient with an autoimmune disorder who was on long-term glucocorticoids. Multilocus DNA sequence-based typing revealed that the infection was caused by a novel three-locus haplotype of Fusarium falciforme designated FSSC 3+4qqq. ...[more]

PMID: 21450957

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Project description:BackgroundCutibacterium modestum is one of the five species of the genus Cutibacterium. While C. acnes has been reported as an important pathogen in bone and joint infections, the clinical characteristics of C. modestum infections remain unclear. Moreover, thus far, there has been no clinical case report regarding C. modestum infections.Case presentationAn 82-year-old man with a history of repeated trigger point injections for lumbago at the L4 level presented with fever and an exacerbation of lumbago. Physical examination indicated knocking pain at the L4-L5 levels; magnetic resonance imaging showed irregular bone destruction of the L4 vertebral body, and low T1 and high T2 intensity lesions at the L4-L5 intervertebral disc. Two sets of blood cultures (two aerobic and two anaerobic) were performed. Intravenous cefazolin was administered, considering the common pathogens of vertebral osteomyelitis, such as Staphylococcus aureus. The patient's condition did not improve; thereafter, anaerobic culture bottles revealed Gram-positive rods on day 11 of incubation. There was no evidence of infective endocarditis upon transthoracic echocardiography. Needle aspiration from the L4-L5 intervertebral disc was performed on day 13 that also showed the presence of Gram-positive rods. The patient was diagnosed with vertebral osteomyelitis caused by C. modestum using a combination of characteristic peak analysis with matrix-assisted laser desorption ionization (MALDI), microbial biochemistry examinations, and 16S rRNA gene sequencing from the blood and pus cultures. He was successfully treated with alternative intravenous ampicillin, followed by oral amoxicillin for 10 weeks, according to the tests for ampicillin susceptibility, with a minimum inhibitory concentration of 0.016 μg/mL using E-test® under aerobic conditions.ConclusionsCutibacterium modestum is a microorganism that is difficult to identify. A combination of characteristic peaks with MALDI, appropriate microbial biochemical examinations, and 16S rRNA gene sequencing may serve as an efficient guide for the identification of C. modestum.

Dataset Information

Fusarium falciforme vertebral abscess and osteomyelitis: case report and molecular classification.

Publications

Fusarium falciforme vertebral abscess and osteomyelitis: case report and molecular classification.

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