Fig. 8.

A 57-year-old male with history of prostate cancer and prolonged hospitalization for COVID-19 with multi-organ failure requiring vasopressors. a Sagittal STIR image demonstrates soft tissue edema of the proximal foot (dashed arrow) but no edema distally (solid arrow). Heterogeneous bone marrow edema pattern (arrowhead) is seen on both STIR and b sagittal T1-weighted image. c Post-contrast T1-weighted fat-saturated image demonstrates soft tissue enhancement of the proximal foot (dashed arrow) with non-enhancing devitalized tissue distally (solid arrow), compatible with gangrene. Multifocal bone marrow edema pattern (arrowhead) is compatible with associated osteonecrosis