Ultrasound in Skin and Soft Tissue Infection

Have you ever stabbed into an abscess only to have nothing come out? Have you missed an abscess because you thought it was just cellulitis? In theory, ultrasound should be able to help us here by finding that magical pocket beneath the skin that is just asking to be drained. Does the literature support this? Is ultrasound superior to the exam alone? This metaanalysis takes a look at the studies that have been done to find out.