Spinal epidural abscess refers to accumulation pus between the and the vertebral column.
USMLE® Step 1 style questions USMLE
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A 56-year-old male patient presents with a mild fever, radicular back pain, and loss of bladder control. Medical history is significant for a recent respiratory tract infection of unknown origin that resolved on its own. Physical examination reveals percussion tenderness in the lower back and signs of spinal cord compression including bilateral lower limb paresis and saddle anesthesia. Magnetic resonance imaging (MRI) shows a spinal epidural abscess at vertebral level T11.
Based on the patient's history, examination, and MRI, what is the most likely causative agent for the patient's condition?