Psoas abscess

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

Differential Diagnosis

Hip pain

RLQ Pain

LLQ Pain

Evaluation

  • CT is imaging study of choice

Management

See Also

References