Amyotrophic lateral sclerosis (ALS)

What’s Your Rare iQ?

When are the symptoms of Stargardt disease most commonly seen?

Neuromyelitis optica spectrum disorders (NMOSD)

Rare View

60% of tuberous sclerosis cases are diagnosed in the first year. Diagnosis slows down considerably after the first year.

Latest News

Prediagnostic Neurofilament Light Chain Levels in Amyotrophic Lateral Sclerosis
Background and ObjectivesTo assess whether plasma neurofilament light chain (NfL)…
Published: October 11, 2021 - 7:45 pm
Longitudinal Assessment of Strength, Functional Capacity, Oropharyngeal Function, and Quality of Life in Oculopharyngeal Muscular Dystrophy
Background and ObjectivesOculopharyngeal muscular dystrophy (OPMD) is a late-onset, progressive…
Published: October 11, 2021 - 7:45 pm
Teaching Video NeuroImage: Choreoathetosis and Focal Dystonia in Vitamin B12 Deficiency
An 87-year-old man presented with involuntary movements of his fingers…
Published: October 11, 2021 - 7:45 pm

Measured by: prevalence

Disease	Est US prevalence	Inheritance	Age of onset
Narcolepsy	146,000 – 200,000
Idiopathic hypersomnia	104,280 – 130,000
Charcot-Marie-Tooth disease	82,250 – 125,000
Myasthenia-Gravis	48,000 – 60,000
Young onset parkinson’s disease	40,000 – 50,000
Lennox-Gastaut syndrome	30,000 – 45,000
Tuberous sclerosis	27,000 – 37,500
Huntington disease	21,450 – 30,000
Progressive supranuclear palsy	21,000 – 45,870
Amyotrophic lateral sclerosis	15,000 – 17,500