Leber’s Hereditary Optic Neuropathy Plus Causing Recurrent Myelopathy due to an MT-DN1 Mutation at G3635A

Table 2

Relevant cerebrospinal fluid (CSF) and serologic studies sent at second presentation, approximately two years after initial onset of symptoms.

Test (source)	Result	Normal reference range
Neuromyelitis optica spectrum IgG antibody (serum)	Negative	Negative
Myelin oligodendrocyte glycoprotein antibody (serum)	Negative	Negative
Heavy metals screen (serum)	Negative	Negative
Copper (serum)	94 ug/dL	72–166 ug/dL