A Case of Sarcoidosis of the Central Nervous System and Orbita

Figure 1

Thickening of the medial rectus muscle (short arrow; right diameter 9.5 mm; left diameter 5.8 mm) with gadolinium enhancement of the right lacrimal gland (long arrow) and periorbital fatty tissue in the axial fat-suppressed postcontrast T1-weighted sequences (a). The lacrimal gland and the medial rectus muscle appear normal in the axial fat-suppressed postcontrast T1-weighted sequences (b). Pial-gyral nodular gadolinium-enhanced lesions (short arrow) are detected in the bilateral occipital and parietal areas in the sagittal postcontrast T1-weighted sequences (c). Pial gadolinium enhancement (long arrow) and diffuse enhancement of the 9th and 10th cranial nerves (short arrow) are observed in both cerebellar hemispheres in the axial postcontrast T1-weighted sequences (d). Pial-gyral nodular gadolinium enhancement was also observed to be adjacent to the right optic foramen and the bilateral occipital area in axial postcontrast T1-weighted sequences (arrowhead) (e). In axial T2-weighted sequences, hyperintense multiple nodular lesions were detected in the bilateral periventricular white matter (f).

(a)

(b)

(c)

(d)

(e)

(f)