Psoas abscess

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Background

  • Psoas muscle is susceptible to infection from distant sites due to:
    • Rich blood supply
    • Proximity to overlying retroperitoneal lymphatic channels
  • S. aureus is most common pathogen (80%)

Clinical Features

  • Abdominal pain radiating to hip, flank
  • Pain with thigh flexion (esp against resistance)
  • Limp
  • Fever
  • Nausea

Management

  • CT is imaging study of choice
  • Abx, surgical consultation

Source

  • Tintinalli
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