Localized hypertrophic neuropathy
Type of disease: Rare conditions
Localized hypertrophic neuropathy is a nerve condition in which nerve cells increase in number and form bundles that look like onion bulbs. This condition affects one nerve, usually in an arm or leg. The symptoms of this condition include muscle weakness, numbness, and decreased reflexes in the affected limb. Symptoms slowly get worse over time. The cause of this condition is unknown, but some researchers believe it might be a type of tumor, while others believe it might be an unusual reaction to injury. Source: Genetic and Rare Diseases Information Center (GARD), supported by ORDR-NCATS and NHGRI.