Fig. 1

Severe degenerative coxofemoral joint and presence of gas (vacuum phenomenon; arrows) in coxofemoral joint in axial CT images (pulmonary window); a: Dog in prone position; b: Dog in lateral position
Severe degenerative coxofemoral joint and presence of gas (vacuum phenomenon; arrows) in coxofemoral joint in axial CT images (pulmonary window); a: Dog in prone position; b: Dog in lateral position