Diagnostic use of superb microvascular imaging in evaluating septic arthritis of the manubriosternal joint: A case report

Figure 3 Magnetic resonance imaging of the septic manubriosternal joint. A: Magnetic resonance imaging (MRI) sagittal T2-weighted blade image. The surfaces of the manubriosternal (MS) joint are eroded in the margins, the joint is enlarged, and the pseudo-capsule is thickened (blue arrows), with visible arthritis; B: MRI sagittal T2-weighted blade image. Four-month follow-up results - the surfaces of the MS joint are further eroded in the margins, perichondritis (white arrow). The pseudo-capsule is thinned; C: MRI coronal T2-weighted blade fat-suppressed image. A mild bone marrow edema is detected; D: MRI coronal T2-weighted blade fat-suppressed image. Four-month follow-up results - a very mild bone marrow edema was detected (white arrow); E: MRI axial contrast-enhanced T1-weighted Dixon water-only image. Localized fluid collection (abscess) up to 12 mm × 4 mm × 44 mm in front of the left first rib was detected without any sign of mediastinitis (orange arrow); F: MRI axial contrast-enhanced T1-weighted Dixon water-only image. Abscesses were not detected; ms: Manubrium of the sternum; bs: Body of the sternum.