Magnetic resonance imaging (MRI) and MR angiography findings. a, b Diffusion-weighted magnetic resonance imaging (DWI) showed the hyperintensity in the left dorsolateral medulla (a, white arrow) with hypointensity on apparent diffusion coefficient (ADC)-map (b, black arrow). c MR angiography demonstrated no obvious occlusion. Syndrome of inappropriate secretion of antidiuretic hormone (SIADH) associated with lateral medullary syndrome: case report and literature review. Nakano H, Yanase D, Yamada M - BMC neurology (2016). Not Altered. CC.