<unk>  is a rare entity; approximately 222 cases of LDD have been reported in medical literature. Symptoms of the disease most commonly manifest in the third and fourth decades of life, although it may onset at any age. Men and women are equally affected, and there is not any apparent geographical pattern.
Lhermitte–Duclos disease
Parkes Weber syndrome
Madras motor neuron disease
Charcot–Marie–Tooth disease
Dejerine–Sottas disease
Hereditary spastic paraplegia
Amyotrophic lateral sclerosis
Surfer's myelopathy