Isolated Superior Oblique Muscle Swelling Causing Acute Vertical Strabismus in Graves’ Disease

Figure 2

Magnetic resonance imaging (MRI) scans of the patient. The images showed a slight enlargement of the superior oblique muscle of the left eye (red arrow); however, neither enlargement nor abnormal signals were seen in the other four extraocular rectus muscles in either eye: (a) axial T1-weighted image, (b) axial T2-weighted image, (c) coronal T1-weighted image, and (d) coronal Short Tau Inversion Recovery (STIR) image.

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