Table 2.

Coexisting conditions associated with NMOSD

Comorbid conditions	References
Subacute combined degeneration	Ishii et al102
Autoimmune encephalitis	Luo et al,49 Qin et al,50 Ran et al51
Idiopathic intracranial hypertension	Viswanathan and Wong87
Hematological immune disease	Patejdl et al88
Thrombopenic purpura	Wang et al89
Hypertrophic pachymeningitis	Kon et al90
Postural orthostatic tachycardia syndrome	Barun et al91
Osmotic demyelination syndrome	Adamec et al92
Posterior reversible encephalopathy syndrome	Magana et al93
Autoimmune lymphoproliferative syndrome	Cooper et al81
Systemic sclerosis	Pereira et al94
Systemic lupus erythematosus	Pereira et al,94 Asgari et al95
Sjögren’s syndrome	Zhong et al,96 Kahlenberg,108 Jayarangaiah et al,109 Qiao et al,111 Birnbaum et al112
Mixed connective tissue	Parperis80
Hashimoto thyroiditis	Pereira et al94
Myasthenia gravis	Ikeguchi et al,97 Jarius et al101
Dermatomyositis	Martin et al83
Bacterial meningomyelitis	Li et al98
Celiac disease	Matijaca et al99
Spinocerebellar ataxia type 31	Takahashi et al100

Abbreviation: NMOSD, neuromyelitis optica spectrum disorders.