"T1: hypointense"
"T2/T2FS: hyperintense"
"T1 C+: tram-track pattern of peripheral enhancement"
Expected headings
"Aetiology"
"Complications"
"Fluoroscopy"
"Radiological report"
"The term "sinus tract" is non-specific, however, when used in the context of soft tissue or bony infections, it generally delineates the extent of the infection 1. If the abnormal connection is between two epithelial surfaces, such as between hollow organs, skin or vessels, the term fistula is used."
"secondary to iatrogenic injury (e.g. surgical incision)"
"underlying collection or necrotic material (e.g. necrotising pancreatitis)"
"secondary to infective bone foci (e.g. osteomyelitis)"
"secondary to infected membranous sacs (e.g. chronic empyema)"
"secondary to an underlying foreign body (e.g. shrapnel)"