Figure 1. T2-weighted image of the brain. Image shows hyperintense nonenhancing periventricular and subcortical white matter lesions in a 33-year-old man with multiple cranial nerve involvement and granulomatous bilateral hilar lymphadenopathy.

Figure 2. Axial and coronal T1-weighted images of the brain after gadolinium administration. (A and B) Images show meningeal enhancement in the sulci of the left occipital lobe; (C) hyperintense intraparenchymatous lesion on T2-weighted image in the left occipital lobe from the same patient, a 51-year-old man with chronic meningitis and a positive Kveim test.

Figure 3. Sagittal T2-weighted image of the spine. Image shows hyperintense lesions within several vertebral bodies in a 59-year-old woman with bilateral hilar lymphadenopathy. Noncaseating granulomas were demonstrated on a biopsy of the second lumbar vertebra and supraclavicular lymph node. Published with permission ^[28].

Figure 4. ⁶⁷Gallium scan. Scan shows bilateral hilar and right paratracheal lymphadenopathy uptake (lambda pattern) and lacrimal and parotid glands uptake (panda pattern) in a patient with Löfgren syndrome.