Radiologic Mimics of Osteomyelitis and Septic Arthritis: A Pictorial Essay

Figure 2

Discitis-osteomyelitis. (a) Sagittal STIR (short tau inversion recovery) with contiguous marrow oedema signal in the L3 and L4 vertebral bodies with involvement and effusion of the intervening L3/4 disc (arrow). Adjacent diffusely enhancing phlegmon (arrow) on a sagittal T1 postcontrast sequence (b) encroaching on the anterior epidural space, resulting in moderate spinal canal stenosis.

(a)

(b)