Citrobacter braakii, an Unusual Organism: Case Report and Literature Review

Citrobacter braakii, um Organismo Incomum: Caso Clínico e Revisão de Literatura

Authors

  • Alexandra Machado Serviço de Medicina Interna, Unidade Local de Saúde de Entre o Douro e Vouga, Santa Maria da Feira, Portugal
  • Luís Fernandes Serviço de Medicina Interna, Unidade Local de Saúde de Entre o Douro e Vouga, Santa Maria da Feira, Portugal
  • Diana Dias Serviço de Medicina Interna, Unidade Local de Saúde de Entre o Douro e Vouga, Santa Maria da Feira, Portugal
  • Heloísa Ribeiro Serviço de Medicina Interna, Unidade Local de Saúde de Entre o Douro e Vouga, Santa Maria da Feira, Portugal

DOI:

https://doi.org/10.60591/crspmi.232

Keywords:

Abscess/complicações, Bacteremia, Citrobacter, Drug Resistance, Microbial, Enterobacteriaceae Infections

Abstract

Citrobacter braakii, a Gram-negative bacterium belonging
to the Enterobacteriaceae family, is recognized as an
opportunistic pathogen.

We present the case of an 81-year-old man, immunocompromised, with multiple comorbidities, including myelodysplastic syndrome and rectal adenocarcinoma. The patient initially presented with a fever, decline in general condition and refusal to eat. From the initial complementary study, COVID-19 was diagnosed, and supportive care was initiated. During hospitalization, given the persistence of fever and elevated inflammatory markers, we repeated the microbiological study, revealing bacteremia caused by Citrobacter braakii. Subsequent images identified an abscess related to anastomotic dehiscence, the most likely source of infection.
With the description of this case, we intend to raise awareness of the importance of recognizing C. braakii as a potential agent, especially in immunocompromised patients.

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References

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Sagittal section of abdominal computed tomography (CT) with presacral collection measuring about 90 x 66 x 28.

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Published

2024-09-26

How to Cite

Machado, A., Fernandes, L., Dias, D., & Ribeiro, H. (2024). Citrobacter braakii, an Unusual Organism: Case Report and Literature Review: Citrobacter braakii, um Organismo Incomum: Caso Clínico e Revisão de Literatura. SPMI Case Reports, 2(3), 113–116. https://doi.org/10.60591/crspmi.232

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