"Nocardia spp."
"Ultrasound will usually show an irregular, hypoechoic, centrally avascular fluid collection surrounded by a hypervascular rim 2. The central core often shows internal echos that may move with compression 5."
"Staphylococcus aureus"
"streptococcus species such as Streptococcus pyogenes"
"Serratia marcescens"
"Pseudomonas aeruginosa"
"Mycobacteria (avium/ tuberculosis)"
"Nocardia spp."
"Staphylococcus aureus"
"Serratia marcescens"
"Pseudomonas aeruginosa"
"Mycobacteria (avium/ tuberculosis)"
"Nocardia spp."
Expected headings
"Associations"
"Signal characteristics"
"Radiological report"
"MRI"
"Local symptoms include swelling, erythema, warmth, pain and tenderness with or without lymphadenopathy and possibly spontaneous purulent drainage 2,3."
"A soft tissue abscess consists of a central core or abscess cavity filled with pus and a peripheral abscess membrane or capsule made up of leucocytes, macrophages, fibrin, collagen and granulation tissue 4."
"They are commonly seen in the trunk, extremities, buttocks and the perianal region as well as in the axillary region."
"MRI features an overall high sensitivity and moderate to good specificity for the detection of an acute abscess 1,3 and might show high specificity in subacute, chronic or acute on chronic abscesses if the penumbra sign is present 1,6."
"presence, location and size of the abnormal fluid collection"
"Soft tissue abscesses are found within the superficial and deep soft tissue planes that are within and around the subcutaneous and deep fatty tissue, the fasciae and muscles 1; blood vessels and lymphatics might also be involved."
"There are usually inflammatory changes such as soft tissue oedema and fat stranding in the surrounding tissues 3."
"risk factors for severe disease and/or complications (e.g. immunocompromise)"