Leber plus disease

What is Leber plus disease?

Leber `plus' disease describes patients with the clinical features of Leber's hereditary optic neuropathy (LHON; see term) in combination with other serious systemic or neurological abnormalities. These abnormalities include: postural tremor, motor disorder, multiple sclerosis-like syndrome, spinal cord disease, skeletal changes, Parkinsonism with dystonia, anarthria, dystonia, motor and sensory peripheral neuropathy, spasticity and mild encephalopathy. It is caused by maternally-inherited mitochondrial DNA (mtDNA) mutations.

Other condition names

  • LHON plus disease

Inheritance type

Mitochondrial inheritance


  • Europe: <1 in 1,000 000

Age of Onset

  • Adolescent
  • Adult
  • Childhood
  • Infancy
Orphadata: Free access data from Orphanet. © INSERM 1999. Available on "https://www.orphadata.com". Data version 1.3.16 / 4.1.7.