PMC10175671_01
Clinical features and MRI examination of the proband. (A) Body scratches and bruise on the extremities by self-harm. (B) T2-weighted brain magnetic resonance image, showing the "eye-of-the-tiger" sign in the globus pallidus (arrow) at 4 years of age.
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F1
She had superimposed choreiform movements, mainly involving the distal upper limbs, and displayed involuntary self-injurious behavior (Figure 1A). Brain MRI at 4 years of age displayed a typical "eye-of-the-tiger" sign (Figure 1B).