PMC6297209_01
Magnetic resonance imaging of the bilateral lower limbs muscles. On admission, spectral attenuated inversion recovery (SPAIR) T2-weighted images of muscle MRI revealed left-side dominant high intensities throughout the bilateral gastrocnemius muscles, left soleus muscle, left anterior and posterior tibialis muscles, and left extensor digitorum longus muscle at this level (A). No abnormal lesions of these muscles were seen in a T1-weighted image on admission (B). No gadolinium contrast enhancement was observed in these muscles on admission (C). SPAIR T2-weighted images showed improvement of the abnormal intensities in these muscles 4 months later (D). Rt, right side; Lt, left side.
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F1
Muscle MRI on admission revealed patchy high signal intensities of various degree in her bilateral gastrocnemius muscles, left soleus muscle, left anterior and posterior tibialis muscles, and left extensor digitorum longus muscle on spectral attenuated inversion recovery (SPAIR) T2-weighted images (Figure 1A), whereas there were no abnormal intensities on T1-weighted images and no gadolinium contrast enhancement (Figures 1B,C). MRI findings on SPAIR T2-weighted images improved within 1 month (Figure 1D).