chronic osteomyelitis
Chronic osteomyelitis represents a form of osteomyelitis and is a progressive inflammatory process resulting in bone destruction and sequestrum formation. It may present as recurrent or intermittent disease.
Pathology
It is a result of osteonecrosis caused by disruption of intraosseous and periosteal blood supply during the acute stage of the disease. A dead infected bone fragment becomes separated from viable bone (known as a sequestrum). Infective agents within the devascularised sequestrum become protected from antibiotics and the endogenous immune response, forming a nidus for chronic infection. This may persist for years.
Radiographic features
Plain radiograph
Inhomogeneous osteosclerosis and/or sequestrum formation (necrotic bone) is characteristic of chronic osteomyelitis on plain radiography.
CT
CT may provide information regarding the presence of sequestra, cloaca, cortical destruction and the thickness of the involucrum.
See also
Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu chronic osteomyelitis:
