Page 668 - Atlas of Small Animal CT and MRI

658 Atlas of Small Animal CT and MRI

Figure 6.3.5 Septic Arthritis (Canine) CT

(a) DX, LAT (b) CT, SP (c) CT+C, SP

(d) CT, TP (e) CT+C, TP

(f) CT, TP (g) CT+C, TP
15mo M Border Collie with a 6‐month history of open injury to the left stifle, which subsequently cultured positive with methicillin‐
resistant Staphylococcus aureus. Images d and e are proximal to images f and g. The injury was both surgically and medically managed.
There is extensive extracapsular and intracapsular soft‐tissue swelling/joint effusion on a survey radiographic image (a). Subchondral
osteolytic foci involving the trochlear ridges of the femur are also evident (a: arrowheads). The extent of subchondral bone destruction
is better appreciated on sagittal and transverse plane CT images (b,d,f: arrowheads). There is marked contrast enhancement of both
the extracapsular and intracapsular soft tissues of the stifle due to cellulitis and synovitis, respectively (c,e,g).

658