Severe case of pneumonia with pleural effusion in an immunocompromised woman due to Fusobacterium necrophorum

Infections caused by fusobacteria have a wide clinical spectrum, and in certain patients, they can lead to severe systemic illness. We report the case of an immunocompromised young woman who presented with severe pneumonia complicated by parapneumonic pleural effusion, despite wide-spectrum antibiotic treatment. Fusobacterium necrophorum was isolated in the samples obtained after thoracentesis was performed. Apart from the pulmonary involvement, we could not identify the infectious focus, since the patient did not have poor dentition or Lemierre's syndrome. After an extended antibiotic regimen and placement of a chest tube, the patient fully recovered and was able to be discharged.

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