# Non-clostridial gas gangrene due to Anaerococcus tetradius following a cesarean section: A case report

## TL;DR

A 25-year-old woman developed a rare infection after a cesarean section caused by Anaerococcus tetradius, a bacteria not commonly linked to such infections.

## Contribution

This is the first reported case of Non-Clostridial Gas Gangrene caused by Anaerococcus tetradius following a cesarean section in an immunocompetent patient.

## Key findings

- The patient was diagnosed with Non-Clostridial Gas Gangrene due to Anaerococcus tetradius.
- Histopathological examination confirmed skeletal muscle necrosis.
- A. tetradius infections are rare and should be considered in post-cesarean complications.

## Abstract

A 25-year-old healthy woman was admitted to our hospital with fever and abdominal pain. Abdominal contrast-enhanced computed tomography revealed a fluid collection with foamy gas formation extending from both rectus abdominis muscles to the subcutaneous tissue. Antimicrobial therapy with meropenem (3 g/day), clindamycin (1800 mg/day), and daptomycin (300 mg/day) was initiated as empiric therapy. Subcutaneous abscess culture revealed gram-positive cocci, which was identified as Anaerococcus tetradius. Histopathological examination of the necrotic tissue showed skeletal muscle necrosis. On the basis of these findings, the patient was diagnosed with Non-Clostridial Gas Gangrene (NCGG) due to A. tetradius. We report a novel case of NCGG caused by A. tetradius following a cesarean section in an immunocompetent patient. Although A. tetradius has been detected in clinical specimens, cases of human infections are extremely rare. Clinicians should consider A. tetradius infection as a complication of a cesarean section.