PMC9984950_01
Gadolinium enhanced MRI of the left leg of the patient described in Case 1. Image of left leg showing fluid collection in distal vastus lateralis (red arrow the arrow is missing).
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MRI of the quadriceps showed a main fluid filled cavity in the distal vastus lateralis that measured 6 x 3.5 x 1 cm (Fig. 1) with additional smaller lesions, suspicious for pyomyositis with abscesses.
PMC9984950_02
Gadolinium enhanced MRI of the right forearm of Case 2 demonstrating intramuscular abscess within the flexor digitorum profundus (red arrow).
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An MRI of his right arm demonstrated an abscess within the flexor digitorum profundus muscle of the right mid to distal forearm with associated surrounding myositis (Fig. 2).