Neuromyelitis optica mimicking intramedullary mass in a child with isolated brainstem syndrome

NMOSD is an immune-mediated disorder which is characterized by relapsing episodes of optic neuritis and myelitis. Brain stem related symptoms such as Intractable vomiting are not usually considered as the initial presentation and misdiagnosis has been frequently observed. Almost 4% of NMOSD cases are pediatric. Early differentiation of NMOSD from other childhood disorders including ADEM, MS, infections and mass lesions is...