Finally, Parkinsonism, cerebellar ataxia, and even multiple sclerosis‐like symptoms have been reported in some patients with SPG11 mutations, thus adding to the clinical heterogeneity that is associated with mutations in SPG11 (Balicza et al., 2018; Faber et al., 2018; Guidubaldi et al., 2011; Mukai et al., 2018). Here, SPG11 is linked to Parkinson disease.