case_images: PMC11282544_01
case_images: Axial-section T1 (a), T2 (b), STIR (c) and T1 FS after injection of Gadolinium (d) and coronal-section STIR (e) showing edema of the vastus intermedius, vastus lateralis, and right biceps femoris muscles, in hyposignal T1, hypersignal T2 and STIR, enhancing after injection of Gadolinium, associated with significant infiltration of the subcutaneous fat opposite.
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case_images: Muscle magnetic resonance imaging (MRI) showed diffuse inflammatory involvement of the vastus lateralis muscle of the right quadriceps associated with edematous infiltration of subcutaneous fatty tissues (Figure 1).
case_images: H&E-stained muscle biopsy showing endomysial inflammation and edema (black arrow) associated with severe fasciitis (red arrow).
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case_images: There was no mitochondrial, glycogenic, or lipid overload (Figure 2).
case_images: Control magnetic resonance imaging in axial T1-weighted (a), T2-weighted (b), T1 FS after gadolinium injection, (c) and coronal STIR (d), showing disappearance of muscle edema with normal appearance of the thigh.
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case_images: A control MRI, performed after 2 months of evolution, showed a discrete hypersignal T2 of the lower half of the vastus lateralis and a contrast taking of the fascia in view (Figure 3).