Footnotes

• Contributors KA wrote the initial manuscript and coordinated the report. DCMc reviewed and edited the manuscript. MD reviewed and edited the manuscript, providing the ophthalmological details. CL reviewed and edited the manuscript and wrote the clinical question.

• Competing interests None.

• Patient consent Obtained.

• Provenance and peer review Not commissioned; externally peer reviewed.

• Data sharing statements This is a Neurological picture, not a research article. We consent to information from the case to be shared as the JNNP sees fit.