Recognizing and Differentiating Area Postrema Syndrome Across NMOSD, MOGAD, and GFAP Astrocytopathy
Area postrema syndrome (APS)—intractable nausea, vomiting, and/or hiccups persisting ≤48 h—is a recognized presenting feature of neuromyelitis optica spectrum disorder (NMOSD) and, less commonly, of myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) and glial fibrillary acidic protein (GFAP)-astroc...