Soft tissue infection with concern for abscess
Recommended: Soft tissue Ultrasound is the preferred imaging study for soft tissue infection with concern for abscess. US is first-line for fluid collection and guidance of drainage.
Recommended study
Soft tissue Ultrasound
US is first-line for fluid collection and guidance of drainage. CT for deep / fascial involvement; MRI for necrotizing fasciitis when clinical suspicion is high.
If the default doesn't apply
Necrotizing fasciitis suspected
CT
Do not delay surgery for imaging; CT with IV contrast only if it won't delay
IV contrast