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Bacillus cereus causing intratumoral brain abscess.

Karnika Saigal¹, Vikas Gautam¹, Gagandeep Singh¹

¹Department of Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.

Indian Journal of Pathology & Microbiology

|October 11, 2016

Summary

This case report details a rare intratumoral brain abscess caused by Bacillus cereus in an adult male. Successful treatment involved lesion excision and a 5-week course of piperacillin-tazobactam.

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Area of Science:

Neuroscience
Infectious Diseases
Microbiology

Background:

Intratumoral brain abscesses are uncommon, particularly those caused by Bacillus cereus.
Steroid administration, especially intravenously, can increase susceptibility to infections.
Bacillus cereus is a bacterium typically associated with food poisoning but can cause severe infections.

Observation:

A case of an adult male patient presented with an intratumoral brain abscess.
The patient had a history of intravenous steroid administration.
Cerebral imaging revealed an abscess within a brain lesion.

Findings:

The causative agent was identified as Bacillus cereus.
Surgical excision of the abscess was performed.
The patient received a 5-week course of piperacillin-tazobactam for treatment.

Implications:

This is the first reported case of Bacillus cereus causing an intratumoral brain abscess in a patient with a history of intravenous steroid use.
Highlights the potential for Bacillus cereus to cause severe neurological infections in immunocompromised individuals.
Emphasizes the importance of considering unusual pathogens in brain abscesses, especially in patients with specific risk factors like steroid use.