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BMC Infect Dis ; 24(1): 601, 2024 Jun 19.
Artigo em Inglês | MEDLINE | ID: mdl-38898385

RESUMO

BACKGROUND: Cutibacterium acnes is an anaerobic bacterium mostly implicated in cutaneous and body-implant infections. Splenic abscess is a rare entity and C. acnes abscesses have only exceptionally been reported. We describe a spontaneous splenic C. acnes abscess in an immunocompetent man with no predisposing factors or identified portal of entry. His isolates were subjected to single-locus sequence typing (SLST) to explore their genetic relatedness and better understand this rare infection. CASE PRESENTATION: A splenic abscess was diagnosed on a computed-tomography scan in a 74-year-old man with chronic abdominal pain. No risk factor was identified. Abscess-drained pus and post-drainage blood cultures grew C. acnes. SLST of abscess and blood isolates showed that they belonged to the same C. acnes SLST type C1 found in normal skin and rarely in inflammatory skin disease. Specific virulence factors could not be identified. CONCLUSION: C. acnes abscesses are extremely rare and can develop in immunocompetent patients without an identifiable portal of entry. Molecular typing of clinical isolates can help confirm infection (versus contamination) and enables genetic background comparisons. Further research is needed to understand C. acnes tropism and virulence.


Assuntos
Bacteriemia , Infecções por Bactérias Gram-Positivas , Esplenopatias , Humanos , Masculino , Idoso , Bacteriemia/microbiologia , Esplenopatias/microbiologia , Infecções por Bactérias Gram-Positivas/microbiologia , Infecções por Bactérias Gram-Positivas/diagnóstico , Abscesso/microbiologia , Filogenia , Imunocompetência , Tomografia Computadorizada por Raios X
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