• A case of neuromyelitis optica had strikingly increased numbers of thickened, hyalinized small blood vessels, which were associated with cystic degeneration in the cervical spinal cord and the optic chiasm. These findings support the contention that neuromyelitis optica is a clinical syndrome rather than a distinct nosologic entity.
Lefkowitz D, Angelo JN. Neuromyelitis Optica With Unusual Vascular Changes. Arch Neurol. 1984;41(10):1103–1105. doi:10.1001/archneur.1984.04050210105027