Ilio-psoas abscess caused by methicillin-resistant Staphylococcus aureus (MRSA): a rare but potentially dangerous

Yasuhiro Okada1, Atsuyuki Yamataka, Yuki Ogasawara

  • 1Department of Paediatric Surgery, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, 113-8421, Tokyo, Japan.

Insights

Methicillin-resistant Staphylococcus aureus (MRSA) can cause ilio-psoas abscess (IPA) in neonates, sometimes preceded by a toxic shock syndrome-like exanthematous disease (NTED). Early suspicion and surgical drainage are vital for neonates with unexplained fever and limb disuse.

Area of Science:

  • Neonatal infectious diseases
  • Pediatric surgery
  • Critical care medicine

Background:

  • Methicillin-resistant Staphylococcus aureus (MRSA) is a significant pathogen in neonatal infections.
  • Ilio-psoas abscess (IPA) is a rare but serious condition in neonates.
  • Neonatal toxic shock syndrome-like exanthematous disease (NTED) is an uncommon presentation.

Observation:

  • A neonate presented with symptoms suggestive of NTED.
  • The neonate subsequently developed an IPA.
  • Ultrasound-guided percutaneous needle aspiration was unsuccessful in draining the abscess.

Findings:

  • The IPA was confirmed to be caused by MRSA.
  • Surgical drainage was required for successful management of the IPA.
  • The clinical course highlights a potential progression from NTED to IPA.

Implications:

  • Clinicians should maintain a high index of suspicion for IPA in neonates presenting with unexplained fever and limb disuse.
  • Prompt diagnosis and appropriate management, including surgical intervention when necessary, are crucial for favorable outcomes.
  • This case underscores the importance of considering invasive MRSA infections in neonates with atypical presentations.

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