PMC6475533_01
MRI postcoronal T1 of bilateral thighs. Red arrows show extensive subcutaneous edema with enhancement throughout the subcutaneous adipose space of the left thigh as well as extensive infiltration of muscles in multiple compartments with blue arrow showing abscess.
CRIGM2019-2090379.001.jpg
PMC6475533_01_CRIGM2019-2090379.001.jpg
fig1
MRI of lower extremities with and without contrast showed numerous intramuscular abscesses in the left thigh, extensive infiltration of the muscles in all compartments of the left thigh with subcutaneous edema, and fewer intramuscular abscesses in the right thigh as shown in Figures 1 and 2.
MRI postaxial T1 of bilateral thighs. Red arrows show inflammation in vastus medialis of the right thigh extending up to the periosteum with abscess (Blue arrow). Inflammation and edema of vastus muscle group on the left (Red arrow) with fluid collections in different muscles with abscess (Blue arrow).
CRIGM2019-2090379.002.jpg
PMC6475533_01_CRIGM2019-2090379.002.jpg
fig2
MRI of lower extremities with and without contrast showed numerous intramuscular abscesses in the left thigh, extensive infiltration of the muscles in all compartments of the left thigh with subcutaneous edema, and fewer intramuscular abscesses in the right thigh as shown in Figures 1 and 2.
Light microscopy: high power, lysis of myocytes with marked inflammation.
CRIGM2019-2090379.003.jpg
PMC6475533_01_CRIGM2019-2090379.003.jpg
fig3
Left lower leg muscle biopsy showed fragments of myonecrosis with an acute inflammatory exudate as shown in Figures 3 and 4.
Light microscopy: low power, muscle cell lysis with necrosis.
CRIGM2019-2090379.004.jpg
PMC6475533_01_CRIGM2019-2090379.004.jpg
fig4
Left lower leg muscle biopsy showed fragments of myonecrosis with an acute inflammatory exudate as shown in Figures 3 and 4.