I read with interest the article by McKeon et al1 describing 3 cases of the disease entity named in their title. The neuroimages presented in the article revealed that the first 2 cases were primarily leukoencephalopathies, thereby prompting a comparison with reversible posterior leukoencephalopathy syndrome. The entity described by McKeon and colleagues is defined primarily by its clinical and neuroimaging characteristics; reversible posterior leukoencephalopathy syndrome is similarly defined.
Jaster JH. Reversible Autoimmune Encephalopathy Spectrum. Arch Neurol. 2009;66(7):910-916. doi:10.1001/archneurol.2009.127