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Posterior Approach for Debridement of the Psoas Abscess
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Parvimonas micra spondylodiscitis with psoas abscess
Li Jie Helena Yoo1, Muhamad Danial Zulkifli2, Margaret O'Connor2
1Department of Internal Medicine, University Hospital Limerick, Limerick, Ireland lijiehelena.yoo@hse.ie.
BMJ Case Reports
|November 22, 2019
Summary
Parvimonas micra (P. micra), an oral bacterium, rarely causes severe infections. This case highlights P. micra as a cause of spondylodiscitis and psoas abscess, emphasizing the need for anaerobic bacteria identification in spinal infections.
Area of Science:
- Microbiology
- Infectious Diseases
- Clinical Case Study
Background:
- Parvimonas micra (P. micra) is a Gram-positive anaerobic coccus typically found in the oral cavity.
- Severe infections caused by P. micra are uncommon, with limited documented cases.
Observation:
- A rare case of spondylodiscitis and psoas abscess in an adult patient is presented.
- Magnetic resonance imaging (MRI) revealed L2 and L3 spondylodiscitis.
- Blood cultures and bone biopsy isolates confirmed P. micra infection, identified after prolonged incubation.
Findings:
- The patient presented with a rare clinical manifestation of P. micra infection.
- Successful treatment was achieved with a combination of ceftriaxone and oral metronidazole over 8 weeks.
- A dental cavity was suspected as the primary source of the P. micra infection.
Implications:
- Anaerobic bacteria, including P. micra, are often underestimated in the diagnosis of spondylodiscitis.
- Accurate identification of slow-growing organisms like P. micra is crucial for effective management of spinal infections.
- P. micra should be considered in the differential diagnosis of spondylodiscitis, especially in patients with recent dental procedures or oral infections.
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